The natural way to tone up and stay trim
What are they?
 Weight loss is a booming industry and the constant demand for natural alternatives has prompted researchers to take a more in-depth look at products promoted as fat burners. The majority of supplements operate on the principle of thermogenesis, which is the way the body burns calories to produce heat. Several promising discoveries offer alternatives to prescription medicines, and while it is understood that individuals will have a unique reaction to the various fat burners available, the aim is to provide an effective substitute for fad diets and prescription drugs.
What natural forms exist?
Green Tea (Camellia Sinensis) has been recognised as an effective weight loss aid. Its effectiveness is attributed to a mix of caffeine-like substances and catechins that have thermogenic properties. A study published in the American Journal of Clinical Nutrition revealed that participants taking a green tea extract with high catechin content had an increase in energy expenditure by four percent over 24 hours. Interestingly, green tea has a less stimulating effect than coffee, with the added bonus of several valuable antioxidants. For those seeking to reduce or control their weight, the American Botanical Council Clinical Guide to Herbs recommends a dose of 500 milligrams of green tea extract three times daily.
The herb Guarana was traditionally used by South American hunters and warriors to repress hunger, increase stamina and boost mental focus. Guaranine from the seeds is similar in chemical make up to caffeine, making it an effective nervous system stimulant and metabolism booster. Recently it has become a popular ingredient in carbonated energy drinks and health tonics. Numerous studies support the use of caffeine-like products to stimulate the burning of fat for energy and assist with weight loss. A standard dose of guarana is 250 milligrams per day and it is usually most effective when used in formulas with other ingredients such as Synephrine and White Willow Bark.
Synephrine is derived from the peel of Bitter Orange (Citrus aurantium). Both the name and the chemical structure are similar to the banned stimulant ephidrene. Synephrine is considered far less stimulating to the nervous system and therefore a safer alternative. It works by stimulating the release of adrenalin and noradrenalin which increases metabolism and thermogenesis. It is nearly always sold as part of a weight
loss formula.
Studies into the effects of Carnitine have shown it has a vital role in fat metabolism. The amino acid acts as a shuttle transporting fatty acids into the muscle to be used for energy. About 50 percent of our daily carnitine requirements are supplied by our diet. Sources include animal products such as meat, poultry, fish and some dairy items, while the remainder is synthesised by the body. Deficiencies are common in vegetarians and people with restricted diets.
Chitosan is a fibre-like material extracted from the shells of lobsters, crabs and prawns. Manufacturers claim it can contribute to weight loss by binding to fat in the small intestine and preventing its absorption in the body. There are studies suggesting chitosan can assist in weight loss; however it can also reduce the absorption of fat-soluble vitamins such as Vitamins A, D and E and therefore should be used with caution.
Chromium is the second best-selling mineral supplement in the United States, behind calcium, and is sold alone and as an ingredient in many weight loss products. It is essential for the correct metabolism of carbohydrates and may assist to correctly regulate blood sugar levels. A safe and adequate intake of chromium is considered to be between 50 and 200 micrograms daily. There are also dietary sources of chromium including whole grains, brewer’s yeast, wheat germ, seafood, mushrooms, nuts and cereals; however these are generally poorly absorbed in the intestinal tract.
How do they work?
Metabolism is the natural process by which the body converts food into the energy it needs to function and maintain itself. An increase in metabolism translates into an increase in the rate at which your body converts food into energy and consequently less food gets stored as fat. Fat burners are essentially products that contain certain herbs and other nutrients that work to increase energy, stimulate metabolism, or suppress your appetite. When used in conjunction with a healthy diet and exercise program, these formulas can help you achieve a negative kilojoule balance, which means you are burning up more energy than you are taking in. This is when effective fat loss becomes possible. Losing weight is a daunting proposition for many and fat burners may provide the physical and mental boost you need.
* People with cardiovascular problems and those on certain medications should avoid nervous system stimulants. Be sure to consult your health care professional.
Fat burners are essentially products that contain certain herbs and other nutrients that aim to increase energy, stimulate metabolism, or suppress your appetite
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