Obesity , cardiovascular disease. Traditionally, simple carbohydrates are believed to be absorbed quickly, and therefore to raise blood-glucose levels more rapidly than complex carbohydrates. In addition, reduced leptin signaling to the brain may reduce leptin's normal effect to maintain an appropriately high metabolic rate. Monitoring the Situation of Children and Women [online]. Saturated fats typically from animal sources have been a staple in many world cultures for millennia. Additionally, fiber, perhaps especially that from whole grains, is thought to possibly help lessen insulin spikes, and therefore reduce the risk of type 2 diabetes. Observations on the effect of adding tryptophane to a dietary in which zein is the sole nitrogenous constituent" PDF.
All brands will contain some amount of the extract from the actual fruit, but the amount of the active substance can vary a lot. There are plenty of fly-by-night products around(pretty much all of the ones in local stores) that only offer a very subpar purity. Often times such supplements(like ones sold at WalMart) only contain 20 or less HCA- even when they are marked as higher(this was the conclusion of a recent study). Such low-grade products(like the ones from GNC usually) are basically scams, replete with fillers and additives and dont do much to give you the true benefits of the natural extract.
One of the biggest advantages of GC is its ability to prevent carbs from becoming fatty acids once inside the body- which is a result of the HCAs effects.