According to Wikipedia:
A dietary supplement is intended to provide nutrients that may otherwise not be consumed in sufficient quantities.
Supplements as generally understood include vitamins, minerals, fiber, fatty acids, or amino acids, among other substances. U.S. authorities define dietary supplements as foods, while elsewhere they may be classified as drugs or other products.
There are more than 50,000 dietary supplements available. More than half of the U.S. adult population (53% – 55%) consume dietary supplements with most common ones being multivitamins.
These products are not intended to prevent or treat any disease and in some circumstances are dangerous, according to the U.S. National Institutes of Health. For those who fail to consume a balanced diet, the agency says that certain supplements “may have value.”
Most supplements should be avoided, and usually people should not eat micronutrients except people with clearly shown deficiency. Those people should first consult a doctor. An exception is vitamin D, which is recommended in Nordic countries due to weak sunlight.
There are actually 7 supplements that can help you lose weight according to Women’s Health Magazine.
You can lose weight without starving yourself or drastically restricting your food choices. You can eat reasonable portions and put in reasonable workouts at the gym, and you can shed fat while you do it.
How? It all comes down to eating the right combination of foods–foods that will shift your body out of fat-storage mode and into fat-melting mode. Specific vitamins and nutrients can actually help to flip an internal switch that signals cells throughout your body to burn more calories, wasting many of those calories as heat. Without these important nutrients, the opposite happens. Your body holds onto fat. Your metabolism slows and your weight-loss efforts become an exercise in futility.
Optimize these critical fat-melting nutrients so you can finally drop those stubborn pounds and keep them off for good. In this way, you can still consume reasonable portions and put in a reasonable amount of exercise. Yes, you still have to watch your portions. Yes, exercise is still important. But fat-melting foods work in your favor so you can eat and move in a way that is reasonable, effective, and realistic for life.
How It Melts Fat: Study after study shows that vitamin D helps to ensure body cells listen and respond to insulin, a hormone secreted from your pancreas. One of its jobs is to help glucose get into body cells, which burn glucose for energy. How well insulin pushes glucose into cells is called “insulin sensitivity.” The more sensitive your cells are to insulin, the better. The less sensitive they are to insulin, the more likely the calories you eat will end up in your fat cells.
When levels of D are low, levels of parathyroid hormone (PTH) rise. Higher than normal levels of PTH trigger a series of reactions that eventually lead to fat cells converting sugar into fat and hoarding fat rather than releasing it to be burned, explains Michael B. Zemel, PhD, director of the Nutrition Institute at the University of Tennessee in Knoxville.
A lack of vitamin D may also interfere with leptin, a hormone that signals your brain to stop eating. Your body doesn’t know when it’s full, so you continue to eat. read more