Apple Cider Vinegar
Apple Cider Vinegar gained traction as an appetite suppressant and weight-loss aid in the 1970s. And it’s still popular today. Science shows that vinegar lowers and stabilizes blood sugar levels. With more stable blood sugar, you’re less likely to experience hunger, according to studies conducted at Arizona State University and Sweden’s Lund University. Japanese researchers have reported that Apple Cider Vinegar inhibits several carbohydrate-digesting enzymes, including amylase, sucrase, maltase, and lactase. All of these factors can contribute to less hunger and subsequent weight loss.

Dose: Products vary, so follow label directions for use. May be safely combined with other supplements.

Garcinia Cambogia
Garcinia is rich in hydroxycitric acid (HCA), and both the fruit extract and HCA have been found to suppress appetite and blunt food intake, according to an April 2015 article in the journal Fitoterapia. Garcinia helps in weight loss through three mechanisms: It regulates serotonin levels related to appetite, increases the burning of fat, and decreases the body’s own production of fat.

Dose: 800-1,600 mg daily. You’ll find lower doses in supplements that combine garcinia with other appetite-suppressing ingredients.

Soluble Fiber
Soluble fiber absorbs water in the gut to form a gel, creating a sense of fullness. Tat alone can reduce the desire to eat more, but soluble fiber may work in still other ways. It slows the movement of food from the stomach into the intestine, and may help stabilize blood sugar. Some soluble fiber supplements include inulin, glucomannan, beta-glucan, alginate, and psyllium.

Dose: Because fiber supplements vary, follow label directions for use. Fiber may be combined with other types of supplements.