What are the 13 vitamins and their functions?

13 Essential vitamins and where to find them

  • Vitamin A. Vitamin A is essential for growth and cell development, as well as healthy skin, hair, bones and teeth.
  • Vitamin C.
  • Vitamin D.
  • Vitamin E.
  • Vitamin K.
  • Thiamine (Vitamin B1)
  • Riboflavin (Vitamin B2)
  • Niacin (Vitamin B3)

What is RDA in vitamins?

The RDA (Recommended Dietary Allowance) and the AI (Adequate Intake) are the amounts of a vitamin or mineral you need to keep healthy and stay well-nourished.

What does RDA include?

2Definition and Applications. Recommended Dietary Allowances (RDAs) are the levels of intake of essential nutrients that, on the basis of scientific knowledge, are judged by the Food and Nutrition Board to be adequate to meet the known nutrient needs of practically all healthy persons.

How much vitamins are required daily?

The average adult needs 600 International Units (IU) of vitamin D each day. Older adults (ages 70 and older) need 800 IU each day.

What are the 14 essential vitamins?

There are 14 vitamins that may be listed on the Nutrition Facts label: biotin, choline, folate, niacin, pantothenic acid, riboflavin, thiamin, and vitamins A, B6, B12, C, D, E, and K. Minerals are inorganic substances that are found naturally in soil and water.

What is the RDA used for?

The RDA for a nutrient is a value to be used as a goal for dietary intake by healthy individuals. The RDA is not intended to be used to assess the diets of either individuals or groups or to plan diets for groups.

What are RDA values?

An RDA is the average daily dietary intake level; sufficient to meet the nutrient requirements of nearly all (97-98 percent) healthy individuals in a group.

What is the RDA for vitamin C?

For adults, the recommended daily amount for vitamin C is 65 to 90 milligrams (mg) a day, and the upper limit is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements might cause: Diarrhea.

What are the RDA for adults?

The adult RDA is defined as the average daily level of intake sufficient to meet the nutrient requirements of nearly all healthy people. The RDA for protein for adults ≥18 y of age (0.8 g/kg) has been essentially unchanged for >70 y.

How many vitamins do we have?

Vitamins are a group of substances that are needed for normal cell function, growth, and development. There are 13 essential vitamins. This means that these vitamins are required for the body to work properly.

What increases the RDA fro vitamin C?

Increase in RDA for vitamin C could help reduce heart disease, stroke, cancer. The researchers, in Critical Reviews in Food Science and Nutrition, say there’s compelling evidence that the RDA of vitamin C should be raised to 200 milligrams per day for adults, up from its current levels in the United States of 75 milligrams for women and 90 for men.

What is the RDA for vitamin B complex?

The recommended daily amount of each B vitamin varies. For women, the recommended daily intake is: B-1: 1.1 milligrams (mg) B-2: 1.1 mg. B-3: 14 mg. B-5: 5 mg (RDA not established) B-6: 1.3 mg. biotin: 30 micrograms (mcg) (RDA not established)

What is the recommended vitamin intake?

Recommended intakes for vitamin A for people aged 14 years and older range between 700 and 900 micrograms (mcg) of retinol activity equivalents (RAE) per day. Recommended intakes for women who are nursing range between 1,200 and 1,300 RAE.

What is the RDA of vitamin C for smokers?

The use of kinetic models has shown that the body pool is saturated with a daily intake of 100 mg vitamin C in non-smokers and 140 mg in smokers, amounts that may be regarded as optimal RDA values. Certain disease states may be accompanied by still higher vitamin C requirements but the exact amounts are not yet known.