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  1. 2022年9月21日 · Vitamin B12 is an essential nutrient that helps the body create DNA, nourishes the brain and nervous system, and assists with the formation of healthy red blood cells. The nutrient occurs...

    • Benefits
    • Medical uses
    • Risks
    • Administration
    • Definition
    • Treatment

    Having enough niacin, or vitamin B3, in the body is important for general good health. As a treatment, higher amounts of niacin can improve cholesterol levels and lower cardiovascular risks. Niacin has other benefits. There's good evidence that it helps reduce atherosclerosis, or hardening of the arteries in some people. For people who have already...

    As a cholesterol treatment, there are good studies showing that niacin can boost levels of good HDL cholesterol and lower triglycerides. Niacin also modestly lowers bad LDL cholesterol. It's often prescribed in combination with statins for cholesterol control, such as Crestor, Lescol, or Lipitor.

    However, niacin is only effective as a cholesterol treatment at fairly high doses. These doses could pose risks, such as liver damage, gastrointestinal problems, or glucose intolerance. So don't treat yourself with over-the-counter niacin supplements. Instead, get advice from your health care provider, who can prescribe FDA-approved doses of niacin...

    Since niacin can be used in different ways, talk to your health care provider about the best dosage for you.

    Everyone needs a certain amount of niacin -- from food or supplements -- for the body to function normally. This amount is called the dietary reference intake (DRI), a term that is replacing the older and more familiar RDA (recommended daily allowance). For niacin, the DRIs vary with age and other factors:

    If your doctor prescribes niacin, you might want to take it with food. This can prevent upset stomach. To reduce flushing -- a harmless but uncomfortable side effect of niacin that describes redness and warmth in the face and neck -- your health care provider might recommend taking niacin along with aspirin, an NSAID painkiller, or an antihistamine...

  2. 2023年9月20日 · In adults, your normal range of lymphocytes is between 1,000 and 4,800 lymphocytes in every 1 microliter of blood. In children, the normal range of lymphocytes is between 3,000 and 9,500 ...

  3. 2023年3月23日 · Biotin (vitamin B7) is a vitamin found in foods like eggs, milk, and bananas. Biotin deficiency can cause thinning of the hair and a rash on the face. Biotin is an important part of enzymes in...

  4. 2023年3月3日 · This is what your diastolic blood pressure number means: Normal: Lower than 80. Stage I: hypertension: 80-89. Stage II: hypertension: 90 or more. Hypertensive crisis: 120 or more. Call 911. Our...

  5. 2021年1月1日 · Pantothenic acid helps the body utilize carbohydrates, proteins, and lipids. It is also important for maintaining healthy skin. Vitamin B5 is available as D-pantothenic acid, as well as...

  6. 2023年4月7日 · When vertigo is diagnosed, it is typically an inner ear problem that leads to sensations of not having balance. When you are older, there may be other factors contributing to vertigo, including...