Won't ALA\R-ALA potentially cause problems for me since I have some mercury fillings?
Cutler would say yes, but there's a lack of real studies on the topic. I avoid it because of its potential for long-term prevention of CR-related benefits, which is a little creepy even if you aren't planning on a calorie-restricted diet.
I think you'll be fine if you stay at 4g/day or under. See
this post for a quote about the high dosages used to generate oxidation in the original study, and
this post for the (roughly) equivalent human dosages:
...This is from the point of view of someone unwilling to risk co-supplementation with ALA. In the absence of dose-ranging studies on healthy humans, I guess we mainly have the Ames rat studies to use a a basis. Lessons from the Ames studies are that too high a dosage not only causes oxidative damage but can be less effective than lower dosages that avoid the oxidative damage side effect.
Specifically, in old rats:
- 1.5% in drinking water (equivalent to about 12g daily in 70 kg humans) is too much. It is the least effective of the three dosages tested and increases markers of oxidative damage.
- 0.5% in drinking water (equivalent to about 4g daily in 70 kg humans) is optimal among the three dosages tested. It is more effective than the higher dosage in ambulatory activity and mitochondrial rehabilitation and does not increase markers of oxidative damage.
- 0.15% in drinking water (equivalent to about 1.2g daily in 70 kg humans), while less effective than the 0.5% dosage, is still significantly more effective than the 1.5% dosage with respect to ambulatory activity.
[...]
It therefore seems that the optimal dose for a healthy OLD human with the least risk of side effects should lie somewhere between 1g and 4g daily. An old human who wishes to exercise an abundance of caution might restrict to the lower end of this range.
Edited by chrono, 08 September 2010 - 05:53 PM.
added relevant quote from link