Dr. Alexandra Razrinova, a Russian nutritionist, announced that natural substances that speed up the metabolism and help burn fat (thermogenes) are many in nature.   She says, “These substances raise body temperature, speed up the metabolism, have an effect on burning fat, and activate the central nervous system. These substances are present in many foodstuffs.”       And she adds: hot peppers contain capsaicin, black pepper contains piperine, and citrus peel contains synephrine, and caffeine and epigallocatechin are also attributed to thermogenics. And green tea contains its blend. Ginger, cinnamon, cumin, mustard, garlic, dill (fennel), parsley, basil, rosemary, honey…