One of the key factors to successful weight loss is satisfying the appetite without triggering a craving to overeat. On a scientific scale, the glycemic index (GI) of a food indicates its role in digestion — the lower the GI of a food, the more slowly it converts to blood sugar. Thus, the less likely it is to stimulate uncontrollable urges to eat empty calories. How to goji berries compare to other foods? The goji berry’s GI is 29. Apples are rated at 28, oranges at 42, and cantaloupe at 65. Watermelon is a heaping 72. Of standard health fruits, only the banana compares at a GI of 25. Aside from its low GI rating, goji berries can control appetite and high blood sugar by virtue of its fiber content; goji berries are 21 percent fiber by weight.

Foods high in fiber are naturally filling and moderate blood sugar levels. In addition to its fiber content, goji also contains chromium, a mineral that helps promote a more efficient metabolism. Finally, goji berries contain a host of vitamins and minerals vital to a healthy body. Vitamin C, calcium, and potassium are just to name a few. Goji berries also contain polysaccharides, which help to reduce muscle soreness. So, in addition to promoting a diet without over-eating, goji berries also are an asset to regular exercise, a vital component to any weight-loss regimen.