A few folks can consume as much as they want and still remain thin because of metabolism. On the other hand a few folks consume very little and gain weight. This is why the plight of how to speed up metabolism is crucial when trying to lose weight. But, the question is how to speed up metabolism? Consume or take in a lot of food?! Yes, ingest a lot of food. However, you should know which food you should be feeding on that will handle the speed up of metabolism. Several researches have proven that a few foods significantly raise metabolism. Oatmeal is the most effective kind of food for this. It could be referred to as the metabolism super food. Fiber also sort of a metabolism super-food. It “cleans” our digestive tract and makes the digestive process a lot more effectively. Grapefruit is probably the best metabolism food available to us. It regulates insulin levels which results in quick weight loss. Feeding on a serving of grapefruit with every meal (the grapefruit diet, for instance), is a great way to step-up metabolism and step-down insulin levels. This great metabolism food also incorporates loads of vitamin c which has several benefits to the physical body. Green Tea is really not a food but still is known as one of the best ways to raise the metabolism naturally. It incorporates properties that stimulate the fat burning process and puts the body in high calorie burning mode.