Nutrition Science
Vitamin D in Winter: How Much Is Enough
Latitude, skin tone and season change the answer more than most labels admit.
Knowledge
Nutrition Science
Evidence, plainly explained — what the research says and what it does not.
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Nutrition Science
Magnesium Glycinate and Sleep: What the Evidence Says
Glycinate is the form most often recommended for sleep. The trials are smaller than the marketing suggests, but they are not nothing.