Capsaicin, a natural chemical found in spicy and hot foods, doesn't just taste great with your favorite fajita. Diet companies are now lacing cayenne pepper, a major source of capsaicin, in their diet supplements, claiming it kills hunger and causes significant weight loss.
Sound too good to be true? It might be. But these claims are also being touted by nutritionists and weight loss experts. Several studies conducted on capsaicin have returned very interesting resulting, including the inhibition of fat cell growth and hunger reduction.
From the experts' standpoint, capsaicin can cause weight loss.
Spicy foods tend to satiate the appetite more quickly than bland foods, particularly foods that are both hot and spicy. Combine that with the subtle boost in thermogenesis induced by the spices and a weight loss benefit might be achieved."