Dr. Eric Berg DC · 2026-05-05 · Eric Berg (host)
The #1 Magnesium Mistake Everyone Makes
15 research-tied claims examined: 2 contradicted 1 overstated 1 context 7 supported 4 unverified
4 No source found (not proven false)
Studies demonstrating improvements in anxiety, depression, blood pressure, and migraines use magnesium doses of up to 800 mg per day or higher.
"We're not talking about the doses they even used in certain studies that showed improvements in anxiety, depression, blood pressure, and migraines. Those studies use up to like 800 mg of magnesium per day, sometimes for weeks and sometimes even higher than that." (said at 0:02:38)
No published record matching the claim that clinical studies demonstrating improvements in anxiety, depression, blood pressure, and migraines use magnesium doses of up to 800 mg per day or higher was located; this does not prove the claim false.
65 percent of intracellular magnesium is bound to ATP in mitochondria.
"65% of the magnesium is attached to what's called ATP in your mitochondria. Because we desperately need magnesium to run our energy factory." (said at 0:11:31)
No published record matching the claim that 65% of intracellular magnesium is bound to ATP in mitochondria was located; this does not prove the claim false. In cellular biology, magnesium binds strongly to ATP (forming Mg-ATP complexes essential for enzymatic reactions and energy production), and mitochondria serve as major intracellular magnesium stores. However, published literature typically identifies bone as containing roughly 60% to 65% of total body magnesium, while intracellularly, the majority of ATP is complexed with magnesium throughout the cell, with no evidence confirming the specific 65% mitochondrial ATP-bound figure.
A study by Dr. P.G. Weston published in the American Journal of Psychiatry showed that giving 500 to 1,200 mg/day of magnesium improved 220 out of 250 patients with depression.
"A doctor named P.G. Weston gave magnesium to 50 patients with severe agitated depression. Well, guess what he found? 220 out of 250 depressed people improved. That is a 90% success rate. That study was published in the first volume of the American Journal of Psychiatry. And of course, it's been forgotten, but it's been sitting there for over 100 years. And in that study, they didn't give the 400 mg per day. They gave between 500 and 1,200 mg per day." (said at 0:12:27)
No published record matching the specific 100-year-old study by Dr. P.G. Weston describing 220 of 250 patients with depression improving on 500 to 1,200 mg/day of magnesium was located; this does not prove the claim false.
Unabsorbed oral magnesium causes gastrointestinal distress and diarrhea by drawing water into the intestinal lumen.
"all of that unabsorbed magnesium pulls water out of your intestines." (said at 0:04:11)
No published record matching the claim that unabsorbed oral magnesium draws water into the intestinal lumen to cause diarrhea was located; this does not prove the claim false.
Unverified means no publication matching the claim was located; it does not prove the claim false. Spotted an error? See the corrections policy - disputes from the people quoted are prioritized.