Do not take in case of allergy to any of the constituents of the supplement.Do not exceed the recommended daily dose.Keep out of the reach and sight of children.Food supplements should not be used as a substitute for a varied diet.People with allergies they may have an allergic reaction to shellfish if they take BioActivo® Natural Glucosamine, because glucosamine is extracted from shellfish. People with diabetes should pay attention and monitor their blood glucose levels while using glucosamine. Natural is taken in recommended doses.