We’re going to talk about the side effects of vitamin D and how they can actually occur because of a magnesium deficiency. 

Side effects of vitamin D:
 • Headaches
 • Insomnia 
 • Restlessness 
 • Muscle cramps 
 • Palpitations
 • Anxiety
 • Constipation

Magnesium is needed for vitamin D to be absorbed. Magnesium helps lower the side effects of taking vitamin D, even though the side effects are not from vitamin D—they’re from a magnesium deficiency. Most people have a subclinical magnesium deficiency. 

Magnesium:
 • Is a cofactor for 300 enzymes 
 • Is involved in protein synthesis 
 • Helps regulate blood sugars
 • Is involved in energy production
 • Is involved in making glutathione 

The only side effect of vitamin D (large amounts without vitamin K2) could be hypercalcemia symptoms. But this is very rare.

Magnesium-rich foods:
 • Leafy greens (at least 7 cups per day)
 • Pumpkin seeds
 • Nuts

What you can do in this situation is take some magnesium with your vitamin D, and that may help these symptoms clear up.

There are some cases where vitamin D won’t work, and that can be because of:
 • A problem with the gallbladder
 • Liver damage
 • Kidney damage
 • Not taking vitamin K2
 • Gastric bypass
 • GI issues 

Dr. Eric Berg DC Bio:
Dr. Berg, 51 years of age is a chiropractor who specializes in weight loss through nutritional & natural methods. His private practice is located in Alexandria, Virginia. His clients include senior officials in the U.S. government & the Justice Department, ambassadors, medical doctors, high-level executives of prominent corporations, scientists, engineers, professors, and other clients from all walks of life. He is the author of The 7 Principles of Fat Burning.

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