Another risk regarding the use of dietary supplements intended to promote weight loss is that these products are usually self-prescribed without clearance or input from a health care professional. This can result in harmful interactions between different products and/or medications. Currently in the U.S., there is no controlled system for reporting bad reactions and side effects associated with popular weight loss pills. While some people taking these products, or their doctors, may sometimes report problems to the FDA, they’re not required by law to do so.
Whether you're adding it to your smoothie or having it as the perfect post-workout recovery fuel, Greek yogurt will help you build muscle. This creamy snack is brimming with muscle-building protein—about 20 grams in a 7-ounce cup. It has the one-two punch of vitamin D and calcium, which turn off cortisol, a stress hormone that causes the body to hang on to belly fat. Don't believe us? Take it from the researchers at the University of Tennessee who found that people who ate 18 ounces of Greek yogurt a day lost 22 percent more weight and 81 percent more belly fat than those who didn't.
Many teas have been shown to boost metabolism, block the creation of new fat cells, speed the release of fat from cells, and actually turn off fat genes due to their catechin levels, but green tea has a leg up on the competition. This magical elixir is particularly high in the antioxidant ECGC, the compound that burns fat and stops it from forming. Pair your tea with a workout for a fat-burning bonus. Exercisers who drank four to five cups of green tea daily and worked out for 25 minutes lost more belly fat than their non-tea-drinking counterparts, a study published in The Journal of Nutrition found.
You may also know this root veggie as a sunchoke since they're the roots of a type of sunflower. According to a Canadian study, subjects whose diets were supplemented with a type of gut-healthy insoluble fiber called oligofructose not only lost weight but reported less hunger than those who received a placebo. Researchers discovered that the subjects who consumed the prebiotic fiber had higher levels of ghrelin—the hunger-suppressing hormone—and lower levels of blood sugar. And you guessed it: Jerusalem artichokes are one of the best sources of the fiber.
Green tea extract: Of the most popular weight loss ingredients, this seems to be one of the safest. However, it’s not guaranteed to work well enough to really cause noticeable results. Reported adverse effects may include headache and urinary tract infections, although these are rare. Possible benefits include a mild increase in energy expenditure and fat oxidation.
One 2009 report published in the Journal of Nutritional Biochemistry found that CLA has positive effects on energy metabolism, adipogenesis, inflammation, lipid metabolism and apoptosis. (6) A 2007 study published in the British Journal of Nutrition similarly found that supplementation of a CLA mixture in overweight and obese people (three to four grams a day for 24 weeks) decreased body fat mass and increased lean body mass. (7) And regarding CLA’s safety, there seems to be very little risk for adverse effects on overall blood lipids, inflammation levels and insulin response in healthy, overweight or obese adults.
If you've got weight to lose and you want it gone fast, try swapping out your usual proteins in favor of fish. Not only is fish lower in calories than an equivalent amount of beef or chicken, a study published in Obesity reveals study subjects who added omega-3 fatty acids, like those found in fish, to their diets shed more weight and had an easier time keeping it off than those who skipped them.