Many weight loss studies have found that certain dietary supplements can be used to help control your appetite and increase your rate of losing body fat.

Chromium
Helps insulin, the fat storage hormone do it’s job more efficiently. Since high levels of insulin keep you from burning fat, essentially locking the doors to the fat cells and preventing fatty acids from being released into the bloodstream so they can be transported into the muscle cells and burned for energy, anything that helps keep insulin levels down is an important injunct to a fat loss program. Most Effective Natural Cures on Earth: The Surprising Unbiased Truth by Johnny Bowden, pg. 174

Magnesium & Potassium
Deficiencies of magnesium & potassium create greater glucose intolerance. Magnesium is essential for maintenance of a healthy cardiovascular system. It reduces fat and cholesterol circulating in the blood while potassium supplementation helps improve insulin sensitivity , responsiveness & secretion. Alternative Medicine: The Definitive Guide by Burton Goldberg, Larry Trivieri & John W. Anderson., pg. 698

Fiber
When you eat / take fiber with water, the water soluble fiber binds to water in the stomach making you feel full and less likely to over-eat. Fiber supplements have also been shown to enhance blood sugar control and insulin effects and even to reduce the number of calories the body absorbs. A study in the prestigous New England Journal of Medicine found that a diet with 50 g. of fiber a day lowered insulin levels in the blood. Alternative Medicine: The Definitive Guide by Burton Goldberg, Larry Trivieri & John W. Anderson., pg. 698

CLA
Appears to reduce the ability to take up fats in the bloodstream; it also inhibits the formation of new fat cells. CLA also burns fat at a higher rate while fueling and preserving muscle, leading to a reduction in fat and an increase in lean muscle mass. A recent study published in the International Journal of Obesity found that those who were given CLA for a 4 week period had significant decreases in abdominal fat. A recent study concluded that long term CLA supplementation not only helps to decrease body fat but also helps to maintain weight loss in the long term. Amino Acids and Proteins for the Athlete: The Anabolic Edge. By, Mauro G. Di Pasquale, pg. 377

Powerful Protein
Every meal should have an adequate serving of low-fat protein. Your body needs a constant supply of dietary protein to replace the protein that is lost on a daily basis What’s more, eating protein stimulates the release of the hormone glucagon, which has a hormonal action opposite to that of insulin. Glucagon tells your body to release stored carbohydrates from the liver to replenish blood sugar levels for the brain. Without adequate levels of glucagon, you’ll always feel hungry and mentally fatigued because your brain is short of its primary fuel – blood sugar. This is why adequate protein at mealtime is critical for optimal brain function. Omega Rx Zone: The Miracle of the New High Dose Fish Oil, by Barry Sears, pg. 62.
What are wise low-fat protein choices?