ASCORBIC ACID (vitamin C)
How much vitamins can I take a day?
The upper tolerable level is 1,000 milligrams (1,500 IU); the RDA is 30 IU. "There is no way to get an overdose from diet or fortified foods. In an Alzheimer's study, people took 2,000 IU for four years and didn't have any adverse effects.
How much vitamins is too much?
Although it's extremely rare to die from a vitamin overdose, there have been reported instances of death related to vitamin toxicity. For example, hypervitaminosis A can be caused by taking one large dose of over 200 mg of vitamin A, or chronic use of more than 10 times the recommended daily intake ( 23 ).
Can I take 5 different vitamins at once?
You can—but it's probably not a good idea. For some supplements, optimal absorption can depend on the time of day taken. Not only that—taking certain vitamins, minerals, or other supplements together can also reduce absorption and may result in adverse interactions, which can be harmful to your health.
How much vitamins do I need per day?
Vitamin/MineralMen Age 51+Vitamin/Mineral Vitamin DMen Age 51+ If you are age 51–70, you need at least 15 mcg (600 IU) each day, but not more than 100 mcg (4,000 IU). If you are over age 70, you need at least 20 mcg (800 IU), but not more than 100 mcg (4,000 IU).
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