Flaxseed, with its great nutritional profile, is one of the most valuable seeds that can be added to the diet to boost your health. It is widely used as a key ingredient in a variety of foods and as a supplement. Here are the 6 benefits of flaxseeds. Flaxseeds are generally considered safe for adults when consumed in smaller amounts. However, adding more than the recommended quantity of flaxseeds to the diet may cause gastrointestinal problems.