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Veggies Are Good: Eating foods rich in beta carotene such as carrots, green leafy vegetables, spinach, pumpkins, and sweet potatoes will not harm you. However the danger of overdose occurs with overuse of beta carotene supplements. The most prominent symptom of overdose is a yellowish skin discoloration of the face, palms of the hands and soles of the feet. Check with your doctor before adding these supplements. ...Read more
50 mg/day in 3 doses: Multivitamin formulas frequently provide 3-15 mg of beta carotene (5000-25000 units) when given 51 mg/day in 3 divided doses,serum concentration of beta carotene level was significantly high.Daily doses up to 300mg have been used to treat photosensitivity disorders.In double blind studies beta carotene supplementation increased lung cancer in smokers- 18-28 %.Some humans can't convert to Vit A ...Read more
Is it true vitamin A & E suppl. increase the risk of cancer! I read on internet smokers used beta-carotene were 18% more likely to get lung cancer!
Is it ok to use rose hip oil and vitamin E oil during pregnancy? I heard rose hip oil is high vitamin a. Is this beta carotene based?
Yes: No more than 10, 000 iu of preformed vitamin a should be taken during pregnancy but preformed vitamin a is only found in animal foods (meat, eggs, dairy). There are no vegetarian sources of actual vitamin a- any "vitamin a" said to be in those foods are from carotenes and those are very safe in pregnancy. See http://www.Care2.Com/greenliving/is-vitamin-a-safe-for-pregnant-women.Html. ...Read more
Maybe: Please forgive this senior physician's frankness. The data on carotenes and lycopenes is so massive, so contradictory, is so tied up with the politics of "healthy diet", and makes so little sense scientifically that your question cannot be answered. In science, the stuff that's really true is generally established quickly. I love eating carrots, but would not spend money supplementing carotene. ...Read moreSee 1 more doctor answer
Possibly in smokers: Some studies have found high doses of beta carotene in smokers increases lung cancer risk, yet other studies have found it doesn't increase risk. Antioxidants work as a team & the studies showing increased risk gave beta carotene without other antioxidants to balance it. See http://tinyurl.com/p34vo4b It's wiser to take mixed carotenoids & get through diet. If you smoke use caution-better to quit! ...Read more
What to do if I am on my last month of isotretinoin (acutane) and I want to start to take beta carotene, can I take them when I'm on acutane?
I wouldn't: There's no health benefits to beta carotene in this situation. Both are of course related to vitamin A and there are a few unknowns. Congratulations on completing your course of isotretinoin -- it's not for the faint-hearted and chances are it's been of huge benefit to you. Best wishes. ...Read more
If 100grm of squash has 100% RDI of carotene, how much roughly could be eaten daily without skin yellowing? Would mineral oil stop absorption much?
All you want.: 1st, there is no official RDI for carotene; everybody has a different number. 2nd, I've never seen carotenosis from squash (and my daughter, a vegetarian, eats a TON of it). 3rd, carotenosis due to eating vegetables is harmless, so if you somehow eat enough squash to yellow your skin, cutting back will reverse it. So eat what you want. Mineral oil would have no significant effect on absorption. ...Read moreSee 1 more doctor answer