Mar 21, 2025 · The recommended daily amount of vitamin D is 400 international units (IU) for children up to age 12 months, 600 IU for people ages 1 to 70 years, and 800 IU for people over 70 years.

Nov 1, 2022 · Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.

Oct 12, 2022 · No single formula fits everyone. But knowing more about your body's need for fluids will help you estimate how much water to drink each day.

Aug 13, 2025 · Know the causes of a vitamin B-12 deficiency and when use of this supplement is recommended.

Aug 13, 2025 · Vitamin B-6 (pyridoxine) is important for normal brain development and for keeping the nervous system and immune system healthy. Food sources of vitamin B-6 include poultry, fish, …

Feb 21, 2025 · Is caffeine causing you problems? Find out how much is too much and if you need to cut down.

Aug 14, 2025 · Vitamin C is an essential nutrient found in foods and available as a supplement you take by mouth. Learn about its potential benefits and the causes of vitamin C deficiency.

Nov 1, 2025 · Recommended Dietary Allowances (RDAs) are the amount of vitamins and minerals needed to provide for adequate nutrition in most healthy persons. RDAs for a given nutrient may vary …

Apr 17, 2025 · The recommended daily amount of vitamin A is 900 micrograms (mcg) for men and 700 mcg for women. Daily vitamin A needs change slightly to 770 mcg for pregnant people and 1,300 …

Mar 21, 2025 · Vitamin E is a nutrient that's important for vision, fighting off diseases and the health of the blood, brain, and skin. Vitamin E is an antioxidant. Antioxidants might protect cells from the …