ALC is not to be confused with L-carnitine, which is a very popular weight loss supplement. ALC is the acetyl form of L-carnitine, which increases mental focus.
There is no sure fire dose that is to be used to get the benefits mentioned above, but a good start would be to try 500mg 3 times per day.
Some sources say that it can be more effective taken without food, but the discomfort may not be worth it to you. If you do experience discomfort it is recommended that you take ALC with food.
Small amounts of ALC can be found if our bodies and in milk. If pregnant, please speak with your doctor before using.