Vitamins, minerals, herbs, and supplements Archive

A digestive enzyme supplement can be helpful for people who have difficulty digesting certain foods, but taking one to treat a condition such as heartburn may or may not provide any relief.

Having low vitamin B₁₂ and vitamin D may have several explanations, from diet and sun exposure to conditions that affect nutrient absorption.

Enlarged red blood cells on a routine blood test can have several explanations. Find out what your results may mean and when follow-up is needed.

Ashwagandha is an herbal remedy that has long been used in traditional Indian medicine. In recent years, it’s also become popular in the United States. Proponents say it can help with stress and promote better sleep. However, we have only limited scientific evidence about ashwagandha, and it may not be safe for people with certain medical conditions.

A high calcium result often turns up on a routine lab test. Possible causes range from overactive parathyroid glands to excess vitamin D.

Elevated blood iron can result from supplements, genetic disorders, liver disease, or transfusions. Learn what doctors check next and common ways to reduce it.

500 to 700 milligrams of calcium through diet and 800 to 1,000 of vitamin D as a supplement should be adequate to preserve bone density.

Taking a multivitamin does not reduce the chance of heart disease or mental decline, but it does reduce the risk of being diagnosed with cancer or developing cataracts.

Vitamin D supplements have been growing in popularity, but they're not always needed or taken in the correct doses.

Protein powder supplements can harbor health risks. They're recommended only for certain conditions, such as impaired appetite or wounds that are resistant to healing.