Yohimbine supplements are used to improve sexual performance, increase energy and promote fat loss. While certain uses of yohimbine have been studied, the evidence linking yohimbine with weight loss is very limited.

Slim Fast provides relatively low-calorie, nutritional meal replacement products in the form of milkshakes. They come in four different flavors: chocolate, vanilla, strawberry and cappuccino.

Everybody wants to lose weight fast. After all, it can be discouraging to diet for a month and see no changes when you look in the mirror. The truth is that results are rarely noticeable that quickly when you’re trying to lose weight. Patience is key if you want to see lasting results.

Despite what the commercials may lead you to believe, losing weight is not as simple as popping a pill. The Hydroxycut website suggests that to get desired results, you also need to make changes to your diet.

Ripped Fuel is a thermogenic dietary supplement produced by Twinlab, a subsidiary of Ideasphere. Thermogenic dietary supplements, more commonly known as weight-loss supplements, were classically made up of ephedrine, caffeine and aspirin, known as the ECA stack (ephedrine, caffeine and aspirin).

Slim-Fast is the brand name of a meal replacement shake manufactured by Unilever. This milk-based, calorie-controlled beverage is designed to encourage weight loss. Slim-Fast comes in a ready-to-drink can or in powder form in a variety of flavors.

More than a constipation preventive, fiber consists of plant foods that the body can neither absorb nor digest. Instead, fiber passes through your body, but not before it performs a number of healthy functions. Increasing your fiber intake is simple, whether with pills or high-fiber foods.

Ephedrine is a drug similar in structure to amphetamines. In February 2004, the Food and Drug Administration, or FDA, banned sales of dietary supplements containing ephedrine alkaloids, also called ephedra or ma-huang, due to serious potential side effects. According to MayoClinic.

Over-the-counter diet pills are advertised with frequency on TV, enticing viewers to buy these products as a way to easy weight loss. Many of these products make unsubstantiated claims, however. There is only one OTC diet pill, orlistat, that is approved by the U.S. Food and Drug Administration for weight loss.

The original Stacker 3 was a popular weight loss supplement that contained ephedra. In 2004, the Food and Drug Administration banned ephedra in weight loss products in the United States. Manufacturers of ephedra-based supplements including Stacker 3 had to change product formulations to comply with the FDA ban.

Slim-Fast is a commercial liquid diet. The company also sells small snacks and foods, such as meal bars and instant soups, but its shakes are the most important part of its weight loss program.

HCG refers to human chorionic gonadotrophin, a pregnancy hormone excreted through the urine. HCG is used along with a very-low-calorie diet to produce rapid, significant weight loss. The hormone is available by prescription and over the counter.