In May 2004, the U.S. Food and Drug Administration banned ephedra, an herbal diet pill and ancient Chinese medicine. Some dieters realized then that not all diet pills are safe simply because they are available over the counter. The fact is, plant-based remedies might cause similar side effects to those common in conventional medications and might even lead to death with misuse. Talk to your doctor before using any diet pills, herbal or otherwise.
Chitosan
Chitosan is a diet pill formulated from the active ingredient chitin, a substance found in the shells of lobster, shrimp and crab, as well as in mushrooms. Its positive charge gives chitosan the ability to absorb certain materials. In water purification plants, chitosan is able to absorb greases, oils, metals and toxic substances, according to Drugs.com. In the same way, chitosan absorbs fat in the human body and is shown to have a cholesterol-lowering effect. Talk to your doctor before using chitosan for weight loss. Although the pills are safe for most adults, people with allergies to shellfish should not use chitosan.
Chromium
Chromium is a potentially safe diet pill and mineral found in certain foods. By increasing calorie burning and reducing appetite, chromium is thought to promote weight loss. Chromium also might build muscle, although MayoClinic.com says more research is needed to determine the product's efficacy. Talk to your doctor about safety and dosages.
Green Tea
Green tea is a common beverage served hot or cold. It's also a widely used herbal medicine, touted for its antioxidant activity. As a weight loss aid, green tea extracts are found in capsule form over the counter. The herb's catechins are shown to promote thermogenesis, according to a 2006 study published in the "Journal of Medicinal Food." By converting calories to heat, green tea increases fat burning and promotes weight loss among dieters. The herb is safe for short-term use in most adults, although MedlinePlus says some users experience stomach upset and constipation. Consult a doctor before using.
Considerations
Unlike prescription drugs, dietary supplements are not rigorously tested and monitored by the Food and Drug Administration. This makes it difficult and potentially dangerous for consumers who experiment with over-the-counter diet pills. Rather than sifting through various options on your own, consult a trusted health care provider for advice. Additionally, look for products made by reputable companies, as some supplements might contain harmful additives and drugs not listed on the product's label.
References
- University of Maryland Medical Center; Ephedra; Steven D. Ehrlich, NMD; December 2009
- "Journal of Medicinal Food"; Green Tea Extract Thermogenesis-Induced Weight Loss...; Shixian Q, et al.; 2006
- MedlinePlus; Green Tea; November 2010
- MayoClinic.com; Over-The-Counter Weight-Loss Pills: Do They Work?; February 2010
- Drugs.com: Chitosan
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