Is cla a healthy supplement?

Depends: Although cla has been shown to lead to weight loss, most of the supplements sold in the us are synthetic and have a mixture of the natural form and the synthetic form of cla. The synthetic form may have adverse side effects; the research is note uniform. The best source for natural cla is from grass fed cows: whole milk or yogurt and the meat. Cla has also been shown to have anticancer effects.