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Re: Why Doesn't Cronometer adjust for bioavailability?
Thanks for the answer! When I calculate it I get a different answer than cronometer. 1 oz of beef liver is showing on cronometer as 8991 IU, whereas 1 oz of carrots is showing 4736 IU. 1 oz of beef liver has 2643 micrograms of retinol = 2643 mcg RAE / 0.3 = 8810 IU so that makes sense. However, 1 oz of carrots has 2320… -
Re: Why Doesn't Cronometer adjust for bioavailability?
The USDA uses a different method to calculate IU from the carotenoids, rather than converting them to RAE first. First, they calculate the beta-carotene equivalents to include vitamin A activity from the provitamin A carotenoids: beta-carotene, alpha-carotene, and beta-cryptoxanthin. Beta-carotene equivalents are… -
Why Doesn't Cronometer adjust for bioavailability?
Hi, I like this application quite a lot, but the major problem I have is that the micronutrients do not adjust for bioavailability. For example, beta-carotene from plant foods has a 12:1 conversion to the usable form retinol, yet that is not reflected into the RDI listed. This means if I consume 100% RDI from plant foods…
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