Sep 29, 2025 · Trying to find the best magnesium supplement? ConsumerLab tested popular forms and brands. Find out which ones passed our review and tests, which failed, and which …

May 7, 2024 · ConsumerLab purchased and tested 15 popular magnesium supplements, including softgels, capsules, tablets, liquids, and gummies, to help identify the best …

Mar 7, 2023 · Too little potassium, calcium or magnesium in the diet can cause leg cramps. Medicines often prescribed for high blood pressure can cause increased urination, which may …

Oct 1, 2025 · Diarrhea or Hypomagnesemia (low magnesium in the blood), history of or Osteoporosis (thinning of the bones) or Seizures, history of or Vitamin B12 deficiency—Use …

Information about magnesium including independent product reviews and comparisons, warnings, recalls, side effects, clinical use updates, and news.

May 3, 2021 · Find out how much magnesium you should be getting on a daily basis, signs of magnesium deficiency, and how much magnesium is too much, particularly from magnesium …

Mar 5, 2021 · Find out about interactions between magnesium supplements and over-the-counter antacids and laxatives such as Maalox, antibiotics, and statins and diabetes medications. …

Oct 10, 2025 · For people who take calcium supplements and multivitamins, it's best to take them at different times of day. Calcium can affect how the body takes in the nutrients iron, zinc and …

Mar 5, 2021 · Could your magnesium supplement be causing diarrhea? Find out why the dose of magnesium in your supplement matters, and which forms of magnesium are less likely to …

Apr 28, 2018 · Answer: The most common side effects of magnesium supplements are stomach upset, nausea, vomiting and diarrhea (as nearly all forms of magnesium have a laxative …