Supplements · Proteins
Beef Gelatin: Benefits, How to Use It & Gelatin vs. Collagen
What beef gelatin is, what a spoonful gives you, what the research shows for collagen building, your gut and joints, how it compares with collagen peptides and how to use it in your kitchen.

Why this score?
Weighting: Evidence 30% · Bioavailability & Absorption 25% · Clinical Effectiveness 25% · Safety & Tolerability 20% (5.2×0.30 + 7.8×0.25 + 6.6×0.25 + 8.6×0.20 = 1.56 + 1.95 + 1.65 + 1.72 = 6.88, shown as 6.9).
Interaction check: Low. The trials and reviews cited on this page report no medication interactions for gelatin.

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Beef gelatin is collagen from cattle hides and bones, extracted with hot water until its strands unwind and dried into a powder that dissolves in hot liquid and sets as it cools.12 One 7-gram envelope, about a tablespoon, has 23 calories and 6 grams of protein, rich in glycine and proline.3
- Collagen building: in 8 young men who each tried three drinks, 15 grams of gelatin an hour before exercise doubled a blood marker of new collagen formation4
- Gut: bone broth, collagen and gelatin are the foods Dr. Will Cole and I recommend for rebuilding the gut barrier5
- Gelatin vs. peptides: in 15 men who each tried both, 20 grams of gelatin raised blood glycine about as much as 20 grams of collagen peptides6
- Best sources: bone broth first, then bovine or fish gelatin, toward about 20 to 30 grams of collagen a day from all sources7
The free Healing Leaky Gut protocol puts bone broth and collagen into a 30-day plan.
If you've ever chilled a pot of homemade bone broth and found it set like jelly the next morning, you've already met gelatin. It's the protein that long, slow heat draws out of bones, skin and cartilage, and beef gelatin is that same protein taken from cattle hides and bones, dried and ground into a powder you can stir into soup, set into gummies or whisk into a sauce.12
What makes it valuable is what it's made of. Gelatin is collagen whose strands have been loosened by heat, so it carries collagen's building blocks: glycine, proline and hydroxyproline, the amino acids your body uses to rebuild skin, joints, ligaments and the gut lining.15 Collagen makes up about a third of the protein in your body,8 yet in Heal Your Cells, Dr. Will Cole and I point out that most people eat almost exclusively muscle meat, and that bone broth and animal skin restore the balance modern diets lack.5
In my approach, bone broth comes first, chicken broth in particular, and bovine or fish gelatin sits right beside collagen peptides as the next step.97
Bone broth works because it's high in glycine, proline, and hydroxyproline. It's literally what your gut is made up of.Dr. Josh Axe, DC, DNM, CNSFrom Complete Guide to Healing Leaky Gut Naturally, The Dr. Josh Axe Show (2026), at 33:05
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Glycine sits at every third position along each strand of collagen, which is why collagen foods are so rich in it.10
Gelatin's gel is reversible: it sets as it cools and melts again when it's warmed.2
One metabolic analysis estimated that the glycine your body makes (about 3 grams a day) plus what a typical diet supplies (1.5 to 3 grams) may fall about 10 grams a day short of what a 154-pound adult needs, collagen-making included.11
What is beef gelatin?
Beef gelatin is collagen extracted from cattle hides and bones with hot water and dried into a powder. The heat loosens collagen's tightly wound strands, so gelatin dissolves in hot liquid and sets into a gel as it cools.12
In its natural form, collagen is a triple helix, three protein strands wound tightly around each other.10 To make gelatin, manufacturers clean and pretreat the hides or bones, then extract the collagen with water at 50 to 100 °C (122 to 212 °F). That heat unwinds the helix into looser strands about a third the size of intact collagen, and the liquid is then filtered, concentrated, sterilized and dried.1 Gelatin from cattle hides is usually pretreated with an alkaline solution, which makes it what manufacturers call type B gelatin.2
Gelatin, collagen peptides and bone broth deliver the same protein in different forms. Collagen peptides are collagen cut further by enzymes into much smaller pieces, which dissolve easily and stay thin instead of gelling.12 Bone broth is the kitchen version, simmered from bones, joints and skin, and it brings glycine, proline and glutamine along with minerals such as calcium, magnesium and zinc.13 Our guide to what collagen is and what it does covers its types and how levels change with age.
A short history of gelatin
Long before gelatin came in envelopes, it came from the stockpot. In Ancient Remedies, I wrote this about bone broth: "Made by simmering the bones and ligaments of beef, chicken, fish, and lamb, this nourishing food was a staple for our ancestors, who used every part of an animal as sustenance."14 A 2025 review by Mayo Clinic gastroenterologists notes that people have revered broth as a remedy from ancient times to the modern era.13 Powdered gelatin keeps that same protein in a measured, shelf-stable form.
Beef gelatin nutrition facts
A 7-gram envelope (about 1 tablespoon) of unflavored gelatin has 23 calories and 6 grams of protein, with no fat or carbohydrate. Its leading amino acid is glycine, at 1.33 grams per envelope, and it has no tryptophan.3
Values from USDA FoodData Central, FDC ID 169599 (gelatin, dry powder, unsweetened); the record doesn't name the animal source. Per-serving amounts are calculated from the per-100-gram values, using USDA's 7-gram envelope.3
| Nutrient | 1 envelope (about 1 tablespoon, 7 g) | 20 g | Per 100 g |
|---|---|---|---|
| Calories | 23 | 67 | 335 |
| Protein | 6.0 g | 17.1 g | 85.6 g |
| Glycine | 1.33 g | 3.8 g | 19.0 g |
| Proline | 0.86 g | 2.46 g | 12.3 g |
| Glutamic acid | 0.61 g | 1.75 g | 8.75 g |
| Alanine | 0.56 g | 1.60 g | 8.01 g |
| Arginine | 0.46 g | 1.32 g | 6.62 g |
| Lysine | 0.24 g | 0.69 g | 3.46 g |
| Leucine | 0.17 g | 0.49 g | 2.45 g |
| Tryptophan | 0 g | 0 g | 0 g |
| Calcium | 4 mg | 11 mg | 55 mg |
| Sodium | 14 mg | 39 mg | 196 mg |
Glycine leads the record at 19.0 grams per 100, followed by proline at 12.3 grams, so even a spoonful delivers a concentrated dose of the two amino acids your body uses most to build collagen.310 USDA's record doesn't list hydroxyproline; in the gelatin used in a kidney study, it measured 9.17 grams per 100 grams.15 Twenty grams of gelatin supplies about 17 grams of protein.3
Is gelatin a complete protein?
No. Gelatin has no tryptophan, one of the nine essential amino acids, so it counts as an incomplete protein.316 On my show, I've said collagen counts toward your daily protein only partially, about half: 20 grams of collagen might count toward roughly 10 grams, because it's low in muscle-building amino acids such as leucine and valine.17 Gelatin still fits easily into a healthy diet. A modeling study found that collagen peptides could supply up to 36% of the protein in a typical Western diet while every essential amino acid need was still met.16 Pair it with complete proteins such as eggs, fish and poultry, and see how many grams of protein a day you need in total.
What is beef gelatin good for?
Gelatin supplies the building blocks your body uses to make collagen, and its main uses are the gut lining, collagen building around exercise, your joints, feeling full and, through its glycine, sleep. In 8 young men who each tried three drinks, 15 grams of gelatin an hour before exercise doubled a blood marker of new collagen formation.4
Gelatin has its own human trials: a collagen-building study in 8 healthy young men, a muscle-recovery pilot in 22 active adults, a blood amino acid study in 15 men and appetite and weight studies in 23 to 72 adults.41861920 The joint evidence comes from pooled trials of collagen products and the gut evidence from bone broth research, so every result below names the product studied.
| Use | Evidence | Product studied | What the research shows |
|---|---|---|---|
Gut lining support | Emerging | Bone broth | Broth's amino acids and minerals support the intestinal barrier and calm inflammation there13 |
Collagen building around exercise | Emerging | Gelatin, 15 g with vitamin C, an hour before exercise | PINP, a marker of new collagen formation, rose 153% at 4 hours vs 53.9% on placebo4 |
Joint pain and osteoarthritis | Strong | Collagen products, pooled | Less pain and better function than control, with no more side effects21 |
Feeling full | Emerging | Gelatin as the main protein in a diet or a breakfast | Less hunger than on casein over 36 hours at the lower-protein level; a smaller lunch after a gelatin breakfast1922 |
Sleep | Emerging | Glycine supplements; gelatin is 19% glycine by weight | Each trial reported a benefit on at least one sleep measure233 |
How does beef gelatin work in your body?
Gelatin works by handing your body collagen's raw materials in a form it absorbs within about an hour, and some of them travel as small collagen pieces that connective tissue appears to take up.
Gelatin is rich in glycine and proline, plus hydroxyproline, an amino acid characteristic of collagen.310
In 8 young men who each tried three drinks, glycine, proline and hydroxyproline peaked in the blood 1 hour after a gelatin drink,4 and after volunteers drank gelatin hydrolysates, small collagen pieces, mostly one called Pro-Hyp, peaked 1 to 2 hours later.24
In mice, 95% of a labeled gelatin hydrolysate was absorbed within 12 hours, and it built up in cartilage at more than twice the level of a labeled single amino acid, proline.25
Your body needs vitamin C for the enzymes that stabilize new collagen,26 which is why the gelatin drinks in the exercise study were mixed into a vitamin C–rich concentrate.4
When researchers grew ligaments in the lab with blood serum taken an hour after the men's gelatin drinks, the ligaments' collagen content rose in step with the gelatin dose.4
Vitamin C matters in that fourth step, so pair gelatin with vitamin C foods such as citrus, berries or bell peppers.
What are the benefits of beef gelatin?
The gut lining comes first here, because that's where Dr. Will Cole and I put gelatin to work in Heal Your Cells.5 Gelatin's other uses are collagen building around exercise, joint support, feeling full and glycine for sleep.
Gut lining support
Emerging evidenceTraditional useTraditional use · Mayo Clinic reviewBone broth, collagen and gelatin supply the glycine and proline your gut lining is built from.5 The gut section below covers the research and the full plan.
Study takeaway: bone broth, collagen and gelatin supply the amino acids your gut lining is built from.
Collagen building around exercise
Emerging evidenceHuman studyRandomized trial · 8 men, each tried three drinks; placebo-controlled pilot · 22 adultsIn a study in which 8 healthy young men each tried three drinks before 6 minutes of rope-skipping, three times a day for 3 days, 15 grams of gelatin taken an hour beforehand doubled a blood marker of new collagen formation: PINP rose 153% at 4 hours, against 59.2% after 5 grams of gelatin and 53.9% after the placebo. All three drinks were mixed into the same vitamin C–rich concentrate.4 In a newer placebo-controlled pilot trial, 22 active adults took 15 grams of bovine gelatin with 50 milligrams of vitamin C, or a placebo, twice a day from the day of a hard leg workout through the following week. Overall, recovery of strength and soreness didn't differ between the groups, and the same blood marker of new collagen formation didn't change in either group. In follow-up comparisons the researchers called exploratory, soreness was lower on gelatin at 24 hours and again at 7 days.18 For more ways to bounce back from training, see muscle recovery and tendonitis.
Study takeaway: in 8 young men who each tried three drinks, 15 grams of gelatin an hour before exercise doubled a marker of new collagen formation.
15 g of gelatin before exercise: the biggest rise in a collagen-building marker
Joint pain and osteoarthritis
Strong evidenceHuman studyPooled analysis of 35 RCTs · 3,165 peopleA 2024 pooled analysis of 35 randomized trials in 3,165 people with osteoarthritis found that collagen products eased pain and improved function compared with control. The effect was small to moderate, rated moderate certainty for pain and high certainty for function, and collagen caused no more side effects or dropouts than the comparison.21 For more steps, see collagen for joints and knee pain relief.
Study takeaway: collagen products eased osteoarthritis pain and improved function across 35 trials.
Feeling full
Emerging evidenceHuman study36-hour study · 23 adults, each tried four diets; breakfast study · 24 adultsIn a study in which 23 healthy adults each spent 36 hours in a metabolic chamber on each of four diets, hunger was suppressed more on a gelatin diet than on one built on casein, a dairy protein, at the lower-protein level of the diets.19 In a second study, 24 adults ate breakfast custards made with different proteins on separate mornings, and they ate less at lunch after the gelatin breakfasts than after the casein or soy breakfasts.22 Swapping gelatin in for part of the protein didn't add weight loss in an 8-week study in which 72 adults each followed one of three diets, or improve weight maintenance over the following 4 months in 65 adults,2027 so its value is in helping you feel full at the meal itself. For more ways to curb hunger, see natural appetite suppressants and how satiety works.
Study takeaway: in 23 adults who each tried four diets, gelatin curbed hunger more than casein over 36 hours at the lower-protein level.
Glycine for sleep
Emerging evidenceHuman studyScoping review · 3 trials of glycine itselfGlycine, gelatin's most plentiful amino acid, has sleep research of its own: in a 2026 review, all 3 trials of glycine for sleep reported a benefit on at least one sleep measure.23 On my show, I've recommended about 3 grams of glycine at night to support the liver's phase 2 detoxification, and glycine is one of the amino acids your body uses to make glutathione.28 For comparison, one envelope of gelatin supplies 1.33 grams of glycine.3 See more natural sleep aids.
Study takeaway: all 3 trials of glycine for sleep reported a benefit on at least one sleep measure.
Can beef gelatin help heal your gut?
Yes. Gelatin supplies glycine and proline, amino acids your gut lining is built from, and it's one of the foods Dr. Will Cole and I recommend in Heal Your Cells to rebuild the gut barrier.5 A Mayo Clinic review found that bone broth's amino acids and minerals support the intestinal barrier, especially in inflammatory bowel disease.13
Rebuilding the gut lining is a food-first job in my approach. Our step in Heal Your Cells for rebuilding the gut barrier calls for amino acid–rich foods: bone broth, collagen or gelatin. As Dr. Will Cole and I wrote there, "These support the tight junctions that prevent nutrient loss and inflammation."5 Tight junctions are the seals between the cells of your intestinal wall. My gut-healing protocol puts this into practice: its Repair phase calls for a large daily intake of bone broth, ideally 16 ounces, alongside 10 to 20 grams of collagen peptides a day.29
The research on broth points the same way. In their 2025 review, Mayo Clinic gastroenterologists found that broth's amino acids, including glutamine, glycine, proline, histidine and arginine, and its minerals support gut health, calm inflammation in the intestinal barrier and improve barrier function, particularly in inflammatory bowel disease. They present broth as a potential remedy for keeping IBD in remission.13 In mice given broth simmered from beef bones for 10 days before colitis was induced, the colon showed less tissue damage, and the inflammatory signals IL-6 and TNF-alpha fell by about 95% and 69%.30
To put gelatin to work for your gut, start with a daily mug of broth, add bovine or fish gelatin to soups and stews, and follow the free Healing Leaky Gut protocol. Our guides to leaky gut, the leaky gut diet and L-glutamine cover the rest of the plan.
Beef gelatin vs. collagen peptides: what's the difference?
They carry nearly the same amino acids; the difference is texture. Gelatin gels as it cools and works best in warm foods, while collagen peptides dissolve and stay thin in drinks. In 15 men who each tried both, 20 grams of gelatin raised blood glycine about as much as 20 grams of peptides.6212
| Bovine or fish gelatin | Collagen peptides | |
|---|---|---|
What it is | Collagen unwound by heat during extraction at 50 to 100 °C (122 to 212 °F), into strands about a third the size of intact collagen1 | Collagen cut further by enzymes into much smaller pieces12 |
In the kitchen | Sets into a gel as it cools and melts again when warmed2 | Dissolves in water and stays thin, with no gel12 |
Amino acids in 20 g, measured in one lab | 20,108 mg in all; glycine 4,750 mg; proline 2,664 mg; leucine 588 mg6 | 20,594 mg in all; glycine 4,904 mg; proline 2,722 mg; leucine 584 mg6 |
Peak blood glycine after 20 g, in 15 men | 674 µmol/L, at about 71 minutes6 | 747 µmol/L, at about 48 minutes6 |
Tryptophan | None, so it's an incomplete protein3 | None, so it's an incomplete protein16 |
In a study in which 15 active men each drank six warm protein servings on separate mornings after an overnight fast, 20 grams of gelatin raised blood glycine to a peak of 674 micromoles per liter, against 747 for 20 grams of collagen peptides and 666 for about 1¼ cups (300 milliliters) of café-made bone broth. The researchers found gelatin as well absorbed as the peptides, while a dairy protein, calcium caseinate, reached only 267.6 Gelatin's glycine peaked a little later, at about 71 minutes against 48 for the peptides.6
Gelatin raised blood glycine about as much as collagen peptides and broth
Reach for gelatin in broth, soups, sauces and gummies, and for collagen peptides in coffee and smoothies. You can use both. For more, see collagen vs. gelatin, bovine collagen and fish collagen.
What foods are high in gelatin?
Bone broth is the best food source of gelatin, along with the skin, joints and cartilage of fish and chicken cooked low and slow with the bones. Heat turns the collagen in those tissues into gelatin, the same change a gelatin plant makes on a larger scale.131
Every day, I recommend drinking bone broth or having a collagen supplement.7 On my show, I've pointed out that when you have bone broth, chicken skin or fish skin, you're getting loads of collagen, and that our ancestors didn't discard any part of the animal.31 For an everyday amount, my Anti-Inflammatory Reset calls for a cup of bone broth a day, and the Mitochondrial Longevity protocol from Heal Your Cells calls for 8 ounces most days.3233
Chicken bone broth, which brings glucosamine, chondroitin and hyaluronic acid along with its collagen.9 Our chicken bone broth recipe walks you through it.
Beef or fish bone broth, simmered from knuckles, joints or fish frames; try our beef bone broth recipe.
Skin-on fish, such as wild-caught salmon, cooked with the skin left on.
Skin-on chicken, roasted, then simmered with the bones for broth.
Bovine or fish gelatin, stirred into broth and soups or set into gummies.
For more ideas, see our guide to collagen-rich foods, our bone broth recipes and how much bone broth to drink daily.
Ask Dr. Axe AI. Answers are grounded in this library, with sources shown.
How much beef gelatin should you take a day?
I recommend about 20 to 30 grams of collagen a day for most people, counting bone broth, collagen-rich foods and powders together.7 Gelatin is collagen, so it counts toward that total; the gelatin studies used 15 grams an hour before exercise and single 20-gram servings.46
| What was measured | Gelatin amount | Timing | Who was studied |
|---|---|---|---|
Collagen formation with exercise | 15 g, in a vitamin C–rich drink | 1 hour before 6 minutes of rope-skipping, 3 times a day for 3 days | 8 healthy young men4 |
Blood amino acids | 20 g | One serving after an overnight fast | 15 active men6 |
Recovery after a hard leg workout | 15 g of bovine gelatin with 50 mg of vitamin C | Twice a day from the workout day through the following week | 22 active adults, pilot trial18 |
Bone broth counts toward your total, and how much collagen it supplies depends on the pot. In a lab analysis, broths made to one standard recipe carried less glycine, proline and hydroxyproline than a 20-gram serving of a collagen supplement, while broths made without a set recipe varied widely, with café-made ones carrying the most of every amino acid measured.34 Stirring a tablespoon or two of bovine or fish gelatin into your mug of broth is a simple way to work toward the 15 to 20 grams used in the studies, since each tablespoon is about 7 grams.3
When is the best time to take gelatin?
Take it whenever it fits your meals. Around training, take it about an hour before you exercise along with a source of vitamin C, the approach used in the collagen-building trial.4
How to use beef gelatin
Beef gelatin dissolves smoothly in two steps: bloom it, then warm it. Sprinkle the powder over a few tablespoons of cold water or juice and let it sit for about 5 minutes until it swells, then stir it into hot liquid until it disappears. Added straight to hot liquid, it tends to clump.
Simple beef gelatin gummies
These take about 10 minutes of hands-on time and set in the fridge in about 2 hours.
- 1 cup 100% tart cherry or pomegranate juice
- 3 tablespoons (3 envelopes) unflavored beef gelatin
- 1 to 2 teaspoons raw honey, if you like them sweeter
- Pour ¼ cup of the juice into a small bowl, sprinkle the gelatin over it and let it bloom for 5 minutes.
- Warm the rest of the juice in a small saucepan until it steams; don't let it boil.
- Take the pan off the heat and whisk in the bloomed gelatin and the honey until fully dissolved.
- Pour into silicone molds or a small glass dish and refrigerate until firm. Store them covered in the fridge and eat them within a few days.
The whole batch holds 21 grams of gelatin, about 18 grams of protein, so a third of it gives you one envelope's worth: 7 grams of gelatin and about 6 grams of protein.3
How to choose beef gelatin
Read the label for the animal first.
Beef (bovine) or fish on the label. Pig skin has been the leading commercial source of gelatin, about 46% of production in figures a 2011 review reported, so gummies, marshmallows and capsules can contain pork.352 Choose gelatin labeled beef, bovine or fish; here's why I avoid pork. Fish gelatin can also come from catfish or eel skin, which don't meet the fins-and-scales standard I follow, so look for one whose label names a fish with fins and scales, such as cod.2
Grass-fed or pasture-raised cattle named as the source on bovine gelatin.
Unflavored, with one ingredient, so you control the sweetness; a little raw honey at home is plenty.
A kosher or halal symbol if you keep either standard; see what kosher means.
Independent lab testing for purity and heavy metals, when the maker publishes it.
Beef gelatin side effects and who should be careful
Gelatin is an everyday food protein, and collagen products are well tolerated: across 35 osteoarthritis trials, they caused no more side effects or dropouts than the comparison groups.21 The people who need care are those with a red meat (alpha-gal) allergy, a fish allergy if they use fish gelatin, a history of calcium oxalate kidney stones or a protein limit for kidney disease.
Your own history decides the right source and amount, so here's when to change either:
Red meat (alpha-gal) allergy. In an allergy clinic that skin-tested 1,335 adults, 30 of the 40 people with red meat allergy tested positive for gelatin and 12 were clinically allergic to it, and researchers found the alpha-gal sugar in bovine gelatin.36 If you have alpha-gal syndrome, skip bovine gelatin and bovine collagen, and choose a source with your allergist.
Fish allergy. Case reports describe anaphylaxis after marshmallows made with fish gelatin and after hydrolyzed fish collagen.3738 If you're allergic to fish, skip fish gelatin and fish collagen and choose bovine. Our guide to food allergy symptoms covers the warning signs.
Calcium oxalate kidney stones. Your body can turn hydroxyproline, an amino acid in gelatin, into oxalate. In 10 healthy adults who each ate both diets, 30 grams of gelatin a day for 5 days raised urinary oxalate 43% compared with the same amount of whey protein, and in a separate test in 6 adults, single doses of 5 and 10 grams raised it while 1 and 2 grams didn't.15 If you've had kidney stones, keep gelatin to modest amounts and set your dose with your practitioner.
Kidney disease with a protein limit. Each 7-gram envelope adds about 6 grams of protein, so count gelatin toward your daily limit.3
Pregnancy and nursing. None of the gelatin studies on this page enrolled pregnant or nursing women. Broth and gelatin in foods are everyday foods; if you want to take gelatin as a supplement during pregnancy, confirm the amount with your OB.
The bottom line
Is beef gelatin good for you?
For most people, yes. Beef gelatin is collagen in a form you can cook with, and it brings back the glycine, proline and hydroxyproline that a diet built on muscle meat leaves out. In 8 young men who each tried three drinks, gelatin taken an hour before exercise doubled a marker of new collagen formation; in 15 men who each tried both, it raised blood glycine about as much as collagen peptides; and it's one of the foods Dr. Will Cole and I recommend for rebuilding the gut barrier. The joint and appetite findings are promising, and its glycine ties it to the sleep research too. Our ancestors drank bone broth and wasted no part of the animal,31 and that whole-animal habit is worth bringing back to your kitchen.
Start with bone broth, then add bovine or fish gelatin to soups, sauces and homemade gummies, toward about 20 to 30 grams of collagen a day from all sources.7 If you have a red meat allergy or a history of kidney stones, read the safety section first. Your body was designed to heal, and a spoonful of gelatin in tonight's soup gives it more of what it heals with.
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Open the free protocol → →Beef gelatin: frequently asked questions
Is beef gelatin good for you?
Yes, for most people: it's collagen in a form you can cook with, rich in glycine and proline, and in a study in which 8 young men each tried three drinks, 15 grams before exercise doubled a marker of new collagen formation.34 Start with bone broth and add bovine or fish gelatin to soups, sauces and gummies.
Is beef gelatin the same as collagen?
Beef gelatin is collagen from cattle that's been heated until its strands unwind, so it carries the same amino acids in a form that gels as it cools.12 Our guide to collagen vs. gelatin compares them in detail.
Should I use gelatin or collagen peptides?
How much beef gelatin should I take a day?
Does gelatin count toward my daily protein?
Is there pork in gelatin?
There can be, so check the label. I avoid pork, so choose gelatin whose label names beef (bovine) or fish; if it just says gelatin, the animal isn't stated. Here's why I avoid pork.
Is beef gelatin halal or kosher?
It can be: look for a halal or kosher certification on the package, since those standards cover the source animal and how it was processed. See what kosher means.
Is beef gelatin safe from mad cow disease?
The risk is very low: in its 2024 assessment, the European Food Safety Authority judged gelatin made from cattle bones under EU rules very unlikely to spread BSE, putting the chance that oral exposure would cause no new case in cattle, sheep or goats at 99% to 100%.39 It didn't put a number on the risk to people but described the barrier between species as substantial. Choose gelatin from a maker that names its cattle source.
Can beef gelatin help leaky gut?
Yes. Bone broth, collagen and gelatin are the amino acid–rich foods Dr. Will Cole and I recommend for rebuilding the gut lining, and a Mayo Clinic review found that broth's nutrients support the intestinal barrier.513 The gut section has the full plan.
Does beef gelatin help joint pain?
It can: across 35 trials in 3,165 people with osteoarthritis, collagen products eased pain and improved function compared with control.21 See collagen for joints for more.
Is beef gelatin good for your skin?
It can: gelatin supplies glycine and proline, two of the main building blocks of your skin's collagen.10 Our guide to what collagen is covers the skin trials, which used collagen peptides.
Does gelatin help you sleep?
Is beef gelatin keto-friendly?
Can I take gelatin if I've had kidney stones?
Yes, in modest amounts set with your practitioner. In 10 healthy adults who each ate both diets, 30 grams of gelatin a day raised urinary oxalate 43% compared with whey protein, while in a separate test in 6 adults, single doses of 1 and 2 grams didn't raise it.15
Is beef gelatin safe during pregnancy?
Yes, in food amounts: gelatin in broth, soups and homemade gummies is an everyday food. None of the gelatin studies on this page enrolled pregnant or nursing women, so if you want to take it as a supplement, confirm the amount with your OB.
What can I use instead of gelatin?
Agar agar, made from seaweed, sets liquids into a gel, and arrowroot and tapioca flour thicken sauces and puddings. None of them supplies collagen, which comes only from animal foods.10
Freshness & update log
October 6, 2026 — Rewritten and re-sourced in full. Added the Dr. Axe Score with its math; a USDA nutrition table in place of the uncited label figures and amino acid percentages; the human gelatin studies with their designs, including charts of the 15-gram exercise study and of blood glycine after gelatin, collagen peptides and broth; a step-by-step look at how gelatin becomes new collagen; a gelatin vs. collagen peptides comparison; bone broth as the first food source; guidance to choose beef (bovine) or fish gelatin; a gummy recipe; safety guidance for alpha-gal and fish allergies, kidney stones, kidney disease and pregnancy; and 39 references, where the 2021 page had none. Removed uncited claims about blood sugar, brain function and the immune system.
References
- Holwerda AM, van Loon LJC. The impact of collagen protein ingestion on musculoskeletal connective tissue remodeling: a narrative review. Nutr Rev. 2022;80(6):1497-1514. doi:10.1093/nutrit/nuab083. PMID:34605901
- Said NS, Sarbon NM. Physical and Mechanical Characteristics of Gelatin-Based Films as a Potential Food Packaging Material: A Review. Membranes (Basel). 2022;12(5):442. doi:10.3390/membranes12050442. PMID:35629768
- U.S. Department of Agriculture, Agricultural Research Service. Gelatins, dry powder, unsweetened (SR Legacy, FDC ID 169599). FoodData Central. Accessed October 6, 2026.
- Shaw G, Lee-Barthel A, Ross ML, et al. Vitamin C-enriched gelatin supplementation before intermittent activity augments collagen synthesis. Am J Clin Nutr. 2017;105(1):136-143. doi:10.3945/ajcn.116.138594. PMID:27852613
- Axe J, Cole W. Heal Your Cells. Avery; 2026. ISBN 9798217181353. Chapter "Personalized Nutrition for Cellular Healing" (bone broth and animal skin, p. 131 running head) and the gut-barrier step list ("Step 3. Rebuild the gut barrier and strengthen the gatekeepers of absorption").
- Alcock RD, Shaw GC, Tee N, et al. Plasma Amino Acid Concentrations After the Ingestion of Dairy and Collagen Proteins, in Healthy Active Males. Front Nutr. 2019;6:163. doi:10.3389/fnut.2019.00163. PMID:31681789
- Axe J. The BIGGEST Causes of Fast-Aging Skin (How to Reverse Aging). The Dr. Josh Axe Show. 2025.
- Ricard-Blum S. The collagen family. Cold Spring Harb Perspect Biol. 2011;3(1):a004978. doi:10.1101/cshperspect.a004978. PMID:21421911
- Axe J. 11 Supplements Every 40+ Adult Should Consider. The Dr. Josh Axe Show. 2026.
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