3Jun/111
What does it mean when a vitamin supplement lists its DV% over 100%?
When you look at labels of vitamin supplements, you always see these high numbers, like say, 700% DV. Does it basically mean it is 7 times your needed amount? If so, then what is the point? Wouldn't the body expel the remaining amount once it goes over 100% anyway?
June 3rd, 2011 - 06:10
700% more than the Recommended Daily Amount or Daily Value. The RDA is not enough for optimal health. Eg: prevent rickets – 400IU vitamin D. Optimal good health is stated to be at least 2000IU up to 10 000IU of vitamin D daily. You could eat 100% of RDA every single day and still be deficient in many of the essential nutrients needed for personal optimal health. The bio-availability of these supplements depends on the quality of manufacturing. Poor quality manufacturing of vitamin/mineral tablets renders many of its nutrients ineffective. The body absorbs up to 10% from pills/tablets so that 700% means you may absorb up to 70% more than the RDA. There are many factors that affect absorption such as a poor quality vitamin/mineral product, age, gender, digestive health, current deficiencies, illness, pregnancy, dieting, exercise, stress, or certain prescription and over the counter medications.
Absorption rates
Pill or tablet – 10%
Capsule – 20%
Gel Cap – 30%
Transdermal Patch – 45%
Sublingual Liquid – 50%
Intramuscular Injection – 90%
Intraoral or Sublingual Spray – 95%
Intravenous Injection – 100%
U.S. RDA vs. Optimal Health >>>
http://ezinearticles.com/?U.S.-RDA-vs.-Optimal-Health&id=112276