Although high in fiber, chia seeds are also high in calories - about 37 calories and 3 grams of fiber per tablespoon.
Dr. Andrew Weil says an advantage of eating chia seeds is that you can add them to water and let them sit for 30 minutes, and the chia will form a gel. He states that researchers suggest that this reaction also takes place in the stomach, slowing by the process by which digestive enzymes break down the carbohydrates and convert them into sugar. So eating chia seeds, the kind sold as food, will not harm you if eaten in moderation. Although I am not sure the supposed benefits of the seeds are worth the extra calories.