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A 2017 review reported that daily riboflavin taken at 400 mg per day for at least three months may reduce the frequency of migraine headaches in adults. [24] Research on high-dose riboflavin for migraine prevention or treatment in children and adolescents is inconclusive, and so supplements are not recommended. [1] [3] [25]
The dosage of Vitamin C in one tablet of Flintstones Plus Immunity Support Vitamin C is still below the tolerable upper intake levels (UL). The UL for children 1–3 years of age is 400 mg; 4–8 years of age is 650 mg; 9–11 years of age is 1200 mg. Parents should not give their child more than the recommended dose of Flintstones Plus ...
90 mg Vitamin D: 20 μg Vitamin E: 15 mg alpha-tocopherol Vitamin K: 120 μg Thiamin: 1.2 mg Riboflavin: 1.3 mg Niacin: 16 mg Pantothenic acid: 5 mg Vitamin B6: 1.7 mg Vitamin B12: 2.4 μg Biotin: 30 μg Folate: 400 μg Choline: 550 mg
About 70–90% of vitamin C is absorbed by the body when taken orally at normal levels (30–180 mg daily). Only about 50% is absorbed from daily doses of 1 gram (1,000 mg). Even oral administration of megadoses of 3g every four hours cannot raise blood concentration above 220 micromol/L. [ 19 ]
[59] [11] [60] For example, for vitamin C, recommended intakes range from 40 mg/day in India [65] to 155 mg/day for the European Union. [66] The table below shows U.S. Estimated Average Requirements (EARs) and Recommended Dietary Allowances (RDAs) for vitamins, PRIs for the European Union (same concept as RDAs), followed by what three ...
mg Riboflavin (Vit B 2) 1.3: 2.0: mg ... tocopherol at 400 IU/day plus vitamin C at 1000 mg/day ... to less than 200 mg of caffeine a day. [47] High doses of caffeine ...