Magnesium is arguably the most important mineral in the body, which is why magnesium deficiency can be such an issue.
According to Norman Shealy, MD, Ph.D, an American neurosurgeon and a pioneer in pain medicine, “Every known illness is associated with a magnesium deficiency and it’s the missing cure to many diseases.” Not only does magnesium help regulate calcium, potassium and sodium, but it’s essential for cellular health and a critical component of over 300 biochemical functions in the body.
Even glutathione, your body’s most powerful antioxidant that has even been called “the master antioxidant,” requires magnesium for its synthesis. Unfortunately, most people are not aware of this, and millions suffer daily from magnesium deficiency without even knowing it.
Causes of Magnesium Deficiency
Once thought to be relatively rare, magnesium deficiency is more common than most physicians believe. Here’s why:
- Soil depletion, genetically modified organisms (GMOs) and the chemicals in our food have created a recipe for disaster. As minerals are removed, stripped away or no longer available in the soil, the percentage of magnesium present in food has decreased.
- Digestive diseases, like leaky gut, can cause malabsorption of minerals, including magnesium. Today, there are hundreds of millions of people who aren’t absorbing their nutrients. Also, as we age, our mineral absorption tends to decrease, so the probability of having a deficiency increases across the board.
- Chronic disease and medication use is at an all-time high. Most chronic illness is associated with magnesium deficiency and lack of mineral absorption. Medications damage the gut, which is responsible for absorbing magnesium from our food.
- When you follow a keto diet, even if you’re drinking a lot of water, you will lose a lot of water weight and also flush essential electrolytes out of our system, including magnesium, potassium or sodium. This especially occurs in the beginning, so having magnesium-rich drinks like bone broth can help.
Should you worry about magnesium deficiency? It all depends on your risk factors and presenting symptoms (see below). Also, approximately 80 percent of people have low levels of magnesium, so the chances are that you’re probably deficient.
Take note: Only 1 percent of magnesium in your body is in your bloodstream, so often you can have a deficiency, and it would not even be discovered by a common blood test.
Magnesium Deficiency Symptoms
Many people may be magnesium deficient and not even know it. Here are some key symptoms to look out for that could indicate if you are deficient:
1. Leg Cramps
Seventy percent of adults and 7 percent of children experience leg cramps on a regular basis. Turns out, leg cramps can more than a nuisance — they can also be downright excruciating! Because of magnesium’s role in neuromuscular signals and muscle contraction, researchers have observed that magnesium deficiency is often to blame. (1, 2)
More and more health care professionals are prescribing magnesium supplements to help their patients. Restless leg syndrome is another warning sign of a magnesium deficiency. To overcome both leg cramps and restless leg syndrome, you will want to increase your intake of both magnesium and potassium.
Magnesium deficiency is often a precursor to sleep disorders, such as anxiety, hyperactivity and restlessness. It’s been suggested that this is because magnesium is vital for GABA function, an inhibitory neurotransmitter known to “calm” the brain and promote relaxation. (3)
Taking around 400 milligrams of magnesium before bed or with dinner is the best time of day to take the supplement. Also, adding in magnesium-rich foods during dinner — like nutrition-packed spinach — may help.
3. Muscle Pain/Fibromyalgia
A study published in Magnesium Research examined the role magnesium plays in fibromyalgia symptoms, and it uncovered that increasing magnesium consumption reduced pain and tenderness and also improved immune blood markers. (4)
Oftentimes linked to autoimmune disorders, this research should encourage fibromyalgia patients because it highlights the systemic effects that magnesium supplements have on the body.
As magnesium deficiency can affect the central nervous system, more specifically the GABA cycle in the body, its side effects can include irritability and nervousness. As the deficiency worsens, it causes high levels of anxiety and, in severe cases, depression and hallucinations.
In fact, magnesium has been shown to help calm the body, the muscles and help improve mood. It’s a vital mineral for overall mood. One of the things I’ve recommended to patients over time with anxiety is taking magnesium on a daily basis, and they’ve seen great results. (5)
Magnesium is needed for every cell function from the gut to the brain, so it’s no wonder that it affects so many systems.
5. High Blood Pressure
Magnesium works partnered with calcium to support proper blood pressure and protect the heart. So when you are magnesium-deficient, often you are also low in calcium and tend toward hypertension or high blood pressure.
A study with 241,378 participants published in the American Journal of Clinical Nutrition uncovered that a diet high in magnesium foods could reduce the risk of a stroke by 8 percent. (6) This is profound considering that hypertension causes 50 percent of ischemic strokes in the world.
6. Type II Diabetes
One of the four main causes of magnesium deficiency is type II diabetes, but it’s also a common symptom. U.K. researchers, for example, uncovered that of the 1,452 adults they examined, low magnesium levels were 10 times more common with new diabetics and 8.6 times more common with known diabetics. (7)
As expected from this data, diets rich in magnesium has been shown to significantly lower the risk of type 2 diabetes because of magnesium’s role in sugar metabolism. Another study discovered that the simple addition of magnesium supplementation (100 milligrams/day) lowered the risk of diabetes by 15 percent! (8)
Low energy, weakness and fatigue are common symptoms of magnesium deficiency. Most chronic fatigue syndrome patients are also magnesium-deficient. The University of Maryland Medical Center reports that 300–1,000 milligrams of magnesium per day can help, but you do also want to be careful, as too much magnesium can also cause diarrhea. (9)
If you experience this side effect, you can simply reduce your dosage a little until the side effect subsides.
8. Migraine Headaches
Magnesium deficiency has been linked to migraine headaches due to its importance in balancing neurotransmitters in the body. Double-blind, placebo-controlled studies have shown that 360–600 milligrams of magnesium daily can reduce the frequency of migraine headaches by up to 42 percent. (10)
The National Institute of Health reports that, “The average person’s body contains about 25 grams of magnesium, and about half of that is in the bones.” (11) This is important to realize, especially for the elderly, who are at risk of bone weakening.
Thankfully, there’s hope! A study published in Biology Trace Element Research uncovered that supplementing with magnesium slowed the development of osteoporosis “significantly” after just 30 days. In addition to taking magnesium supplement, you will also want to consider getting more vitamin D3 and K2 to naturally build bone density. (12)
Are You at Risk for Magnesium Deficiency?
So, who is most susceptible to a magnesium deficiency? According to the National Institute of Health, not everyone is created equal in regard to metabolizing and assimilating magnesium. In fact, certain people are inherently at a greater risk of developing a magnesium deficiency.
Magnesium deficiency can be inherited genetically as an inability to absorb this important mineral. Also, a diet low in high magnesium foods or even emotional or work stress can drain magnesium from the body. Whether inherited, through a deficient diet or even stress, a magnesium deficiency can lead to side effects of migraines, diabetes, fatigue and more.
The four most prominent at-risk groups include: (13)
- People with gastrointestinal complaints — It really all starts in the gut. Since most magnesium is absorbed in the small intestines, issues like celiac disease, Crohn’s disease and regional enteritis all have a tendency to cause magnesium deficiency. Also, people who elect for surgeries involving the gut, such as resection or bypass of the small intestines, leave themselves vulnerable for magnesium deficiency.
- People with type II diabetes — Partly due to increased urination, type II diabetics and people suffering from insulin resistance are known to struggle with proper magnesium absorption. Lowering glucose concentrations in the kidneys through natural diet changes can be extremely helpful for these patients.
- The elderly — For several reasons, as people age their magnesium levels drop. First and foremost, studies have shown that the elderly simply don’t eat magnesium-rich foods as they did when they were younger. This is relatively easy to correct. The uncontrollable risk factor, however, is that as we age we naturally experience reduced magnesium intestinal absorption, reduced magnesium bone stores and excess urinary loss. (14)
- People struggling with alcohol dependence — Alcoholics often experience magnesium deficiency because of a combination of the reasons above. The easiest way to understanding this is to see alcohol as an “antinutrient.” It literally sucks the nutrients out of your cells and prevents proper absorption/utilization of the vitamins and minerals that you consume. I would even go one step further and suggest that regular recreational alcohol use, not just alcohol dependence, can lead to magnesium problems. Consuming one to two glasses of wine a week is fine for most people, but much more than that is highly taxing on your liver. Alcohol can also deplete the minerals in your body because it causes dehydration, gut floral imbalance, immune system compromise, disturbed sleep patterns and premature aging.
Soil Depletion Affects Magnesium Intake
What if you don’t fit in any of these buckets, and you’re young, vibrant and seemingly healthy? Does this mean that you’re off the hook? Not exactly.
Magnesium used to be abundantly present in most foods. However, in recent years, food has less and less magnesium due to the farming practices and changes in growing cycles over the last century.
In the Bible, farmers harvested crops according to a Sabbath cycle: six years on, one year off. This helps preserve the nutritional quality of the soil, which is transferred to the foods that we eat.
Studies have shown, for example, that the produce we eat today is a shadow of the nutritional quality of just 60 years ago.
According to a 2011 report published in Scientific American: (15)
The Organic Consumers Association cites several other studies with similar findings: A Kushi Institute analysis of nutrient data from 1975 to 1997 found that average calcium levels in 12 fresh vegetables dropped 27 percent; iron levels 37 percent; vitamin A levels 21 percent, and vitamin C levels 30 percent.
A similar study of British nutrient data from 1930 to 1980, published in the British Food Journal, found that in 20 vegetables the average calcium content had declined 19 percent, iron 22 percent and potassium 14 percent. Yet another study concluded that one would have to eat eight oranges today to derive the same amount of vitamin A as our grandparents would have gotten from one.
The bottom line is that even if you eat a completely organic, non-GMO raw food diet, you’re still at risk because of soil depletion and our current capitalistic farming practices.
Even with this, you still want to make sure you are getting plenty of high magnesium foods in your diet.
Best Magnesium Supplements
If you think you might be more severely magnesium deficient and you want to improve your levels more quickly, you may consider taking an all-natural supplement.
I recommended taking one of the following magnesium supplements:
- Magnesium Chelate — a form of magnesium that bonds to multiple amino acids and is in the same state as the food we consume and highly absorbable by the body.
- Magnesium Citrate — is magnesium with citric acid, which has laxative properties and is often taken for constipation.
- Magnesium Glycinate — is a chelated form of magnesium that tends to provide high levels of absorption and bioavailability and is typically considered ideal for those who are trying to correct a deficiency.
- Magnesium Threonate — is a newer, emerging type of magnesium supplement that appears promising, primarily due to its superior ability to penetrate the mitochondrial membrane, and may be the best magnesium supplement on the market.
- Magnesium Chloride Oil — this form of magnesium is in oil form. It can pass through the skin and into the body. For those who struggle with digestive issues like malabsorption, this is the best form of magnesium to take.
Magnesium Side Effects
Just as a reminder, when taking 600 milligrams or more of magnesium, 20 percent of people taking magnesium as a supplement can experience diarrhea.
My recommendation is to hover around the 300–400 milligrams amount and consult your natural health physician if you experience any disturbances in your GI tract.
Final Thoughts on Magnesium Deficiency
- Magnesium a vital mineral for the body, and according to research, a magnesium deficiency is associated with just about every illness.
- Causes of magnesium deficiency include soil depletion, GMOs, digestive diseases and chronic disease.
- Magnesium deficiency symptoms include cramps, insomnia, muscle pain, anxiety, high blood pressure, diabetes, fatigue, migraines and osteoporosis.
- People with GI complaints, diabetes and alcohol dependence, along with the elderly, are at greater risk of becoming magnesium-deficient.
Read Next: Should You Be Taking Magnesium Supplements?
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