Are Chia Seeds Effective for Weight Loss?

Chia Pets have made the chia plant famous (or infamous) - the terra-cotta figurines which grow a fuzz of green hair. However, recently chia has obtained a new reputation as an effective weight loss supplement.

Books on dieting and fitness personalities have been promoting chia seeds as a powerful appetite suppressant, and health food suppliers have been selling them by the pound. Chia seeds, which come from the chia plant native to Central America, are definitely full of nutrition: an individual serving, which is approximately an an ounce, contains four grams of protein and eleven grams of fiber, which is widely claimed as the key to weight-loss.

However, there isn't much evidence that chia seeds live up to the claims. In a study conducted in 2009, a team of scientists separated 76 overweight and obese people into 2 groups. The first group ate 25 grams of chia seeds two times a day, while the second group ate a placebo. At the end of twelve weeks, the researchers didn't find a significant difference between the two groups in either their appetite or how much weight they lost.

Another group of researchers which reviewed the evidence regarding chia reached a similar conclusion: There wasn't any indication of an impact on weight loss. The scientists didn't find much evidence which supported any other health claims associated with chia seeds either, such as cardiovascular benefits. They concluded that while chia seeds are generally safe to eat and can be a healthy supplement to most diets, “further rigorous examination” of its effects would be needed.

The conclusion is that little evidence exists that chia seeds substantially contribute to weight loss or appetite control.