
Vitamin B-12 - Mayo Clinic
Aug 13, 2025 · When taken at recommended doses, vitamin B-12 supplements are generally considered safe. The recommended daily amount of vitamin B-12 for adults is 2.4 mcg and 10 …
Water: How much should you drink every day? - Mayo Clinic
Jan 21, 2026 · How much water should you drink each day? It's a simple question with no easy answer. Studies have recommended drinking different amounts over the years. But how much …
Biotin (oral route) - Side effects & dosage - Mayo Clinic
Feb 1, 2026 · 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 …
Caffeine: How much is too much? - Mayo Clinic
Feb 21, 2025 · Caffeine has its perks, but it can pose problems too. Find out how much is too much and if you need to cut down.
Calorie Calculator - Mayo Clinic
If you're pregnant or breast-feeding, are a competitive athlete, or have a metabolic disease, such as diabetes, the calorie calculator may overestimate or underestimate your actual calorie needs.
Vitamin D - Mayo Clinic
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 …
Calcium and calcium supplements: Achieving the right balance
Jan 21, 2026 · Considering calcium supplements? First figure out how much calcium you need. Then weigh the pros and cons of supplements.
How many hours of sleep are enough? - Mayo Clinic
Feb 1, 2025 · For kids, getting the recommended amount of sleep on a regular basis is linked with better health, including improved attention, behavior, learning, memory, the ability to control …
Vitamin A - Mayo Clinic
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 …
Vitamin B-6 - Mayo Clinic
Aug 13, 2025 · The recommended daily amount of vitamin B-6 for adults 50 and younger is 1.3 milligrams. After age 50, the recommended daily amount is 1.5 milligrams for women and 1.7 …