Posted by colin wallace on February 27, 2002, at 4:38:24
In reply to Re: Fish Oil + Evening Primrose WORKS!!!!, posted by jay on February 27, 2002, at 2:39:54
Hi,
I knew I'd remembered reading something about Vitimin A toxicity ( to the liver)in large amounts- such as those found in cod-liver oil etc.
Here's a copy of the recommended doses:(don't want to be a scaremonger or anything, because I take it too- but I did reduce the amount somewhat after reading this)
Vitamin A (ie, retinol) - Found in green and yellow vegetables, liver, egg yolks, fish oil, and margarine
US recommended dietary allowance (RDA) is 5000 IU (2500 IU for children aged 1-4 years).Supplements usually are 10,000-50,000 IU per capsule. Fish-liver oils may contain more than 180,000 IU/g.
Acute toxic dose is 25,000 IU/kg, and chronic toxic dose is 4000 IU/kg every day for 6-15 months.
Beta-carotene (ie, provitamin A) is converted to retinol but not rapidly enough for acute toxicity. Vitamin A is highly teratogenic in pregnancy; however, it also is a cofactor in night vision and bone growth.
poster:colin wallace
thread:95554
URL: http://www.dr-bob.org/babble/20020222/msgs/95671.html