Over half of people in the United States have a mutation on the methylenetetrahydrofolate reductase (MTHFR) gene — many of them women. MTHFR mutations can impair your body's ability to methylate, or process, B vitamins like folate and vitamin B12. Methylation is a key step so that your body can utilize these vitamins. The only way to know if you have an MTHFR gene mutation is through a DNA test. Taking methylated vitamins may help people with this gene variant absorb nutrients. "Methylated...

Magnesium is an important mineral that's involved in more than 300 reactions in the body. "It plays a major role in everything from hormone balance and energy production to sleep quality and mood stability," says Samantha Peterson, RD, the founder of Simply Wellness in Goodyear, Arizona. But many women don't eat enough magnesium-rich food, like nuts and seeds or spinach. "I find that many patients are unknowingly deficient — whether due to stress, medications, poor absorption, or modern diets...