Vitamins and Supplements

Taking magnesium? Experts have an important warning

Millions take magnesium for better sleep and less stress, but experts say many people may be expecting more than the science can deliver.

A daily vitamin D supplement may cut your risk of autoimmune disease by over 20%

A five-year trial in 25,871 adults offers the strongest evidence yet.

FDA: 25 weight-loss supplements sold as tejocote root contain a toxic plant that can stop your heart

A single seed of the plant is thought to carry the punch of 100 digoxin heart pills.

If you take ACE inhibitors for blood pressure, these foods could raise your potassium dangerously

Millions take this drug class, and a few everyday foods can quietly push potassium too high.

Your daily multivitamin may be slowing your biological aging by months

A large randomized trial in older adults found a small but real slowing of cellular aging.

Taking magnesium? Experts have an important warning

Millions take magnesium for better sleep and less stress, but experts say many people may be expecting more than the science can deliver.

A daily vitamin D supplement may cut your risk of autoimmune disease by over 20%

A five-year trial in 25,871 adults offers the strongest evidence yet.

FDA: 25 weight-loss supplements sold as tejocote root contain a toxic plant that can stop your heart

A single seed of the plant is thought to carry the punch of 100 digoxin heart pills.

If you take ACE inhibitors for blood pressure, these foods could raise your potassium dangerously

Millions take this drug class, and a few everyday foods can quietly push potassium too high.

Moderna’s mRNA flu shot cleared for older adults ahead of the 2026-27 flu season

The first influenza vaccine built on messenger RNA technology heads to US shelves this fall.

How many minutes of sun exposure you need for vitamin D, and why it depends on your skin tone

A 2024 modeling study puts a number on it, and it varies fivefold across skin tones.

Fresh research examines creatine’s impact on hair health

A belief that has circulated through gyms for years is now facing renewed scrutiny after researchers examined the issue from a completely different angle.

Study questions whether protein powder works after 65

A new study suggests protein powder alone may not help adults over 65 build more muscle.

New study questions whether more sunlight prevents vitamin D deficiency

A new study suggests that spending more time in the sun does not necessarily improve the body's vitamin D levels.

How vitamin C and collagen can affect your skin when you take them together

Collagen and vitamin C are often combined in supplements marketed for healthier-looking skin. However, research suggests that taking them together does not necessarily provide...