Talk:Fucoxanthin

Suspicious Text
Garden of Life sells a product called Fucothin that is a fucoxanthin supplement marketed as a weight loss product.

The following text:

"'Fucoxanthin reduces fat because of its increase in cell energy expenditure. This is important because fucoxanthin helps to increase your metabolic rate, which becomes progressively slower as you age, explaining why normal dieting doesn't always have the desired long-term results. There have been recent studies in both humans and animals that showed taking fucoxanthin supplements helps to reduce body weight as well as significant losses in visceral fat, decrease in liver and abdominal fat, and an increase in energy expenditure. Subjects taking the fucoxanthin supplements lost an average of 14 pounds, 11 pounds more than the placebo group.'"

...Sounds to me like it was inserted by someone associated with Garden of Life as a marketing tactic. I could be wrong, but it does appear that way to me personally... Artificial Silence (talk) 03:18, 2 October 2008 (UTC)

Light Absorption
Fucoxanthin doesn't absorb red light. The absorption peak is around 500-525 nm, depending on who you ask, which is greenish. (see http://www.pubmedcentral.gov/articlerender.fcgi?artid=1075158, http://www.iopan.gda.pl/oceanologia/464ficek.pdf). Tarchon 05:10, 6 June 2006 (UTC) 05:09, 6 June 2006 (UTC)

Carotenoid?
I think this compound shouldn't be called a xanthophyll; the molecule doesn't have a regular carotenoid C40 skeleton; it is substitued with other things than oxo and hydroxyl groups. By the way, the picture of the molecular structure has got a stereo-indicative wedge where the carbon atoms at both ends of the wedge only have 3 bonds. Icek 14:36, 24 July 2007 (UTC)
 * It is called "carotenoid", so the carotenoid article should be corrected ... Icek 20:22, 17 August 2007 (UTC)
 * And the stereo-indicative wedge is needed because it's an allene ... Icek 08:45, 22 August 2007 (UTC)

je kan er goed van vermageren!! —Preceding unsigned comment added by 80.201.121.248 (talk) 17:20, 28 March 2008 (UTC)