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Woman over 50 drinking a glass of orange juice. ... A 12-ounce serving of Bright & Early orange juice only has 20% of the recommended daily requirement of vitamin C and has 17 grams of added sugar.
This means that half the women and more than half the men are not consuming the RDA for vitamin C. [21] The same survey stated that about 30% of adults reported they consumed a vitamin C dietary supplement or a multi-vitamin/mineral supplement that included vitamin C, and that for these people total consumption was between 300 and 400 mg/d.
Vitamin C megadosage is a term describing the consumption or injection of vitamin C (ascorbic acid) in doses well beyond the current United States Recommended Dietary Allowance of 90 milligrams per day, and often well beyond the tolerable upper intake level of 2,000 milligrams per day. [1]
Recommended Dietary Allowances (RDA), the daily dietary intake level of a nutrient considered sufficient by the Food and Nutrition Board of the Institute of Medicine to meet the requirements of 97.5% of healthy individuals in each life stage and sex group. The definition implies that the intake level would cause a harmful nutrient deficiency in ...
Women planning to get pregnant. Women who are pregnant. People who have nutrient deficiencies, poor diet or food insecurity. Vitamin C. You can take vitamin C whenever is most convenient for you ...
For example, a cup of iceberg lettuce contains small amounts of potassium, folate, and higher levels of vitamin A, carotenoids, and vitamin K, a nutrient involved in bone metabolism.