In a scientific opinion published in March 2019, Anses recommends that the following population groups should not consume food supplements with glucosamine or chondroitin sulfate:

• Diabetic or pre-diabetic individuals, as well as those who are asthmatic or are treated with vitamin K antagonists (VKA).
• People with a food allergy to crustaceans or insects (glucosamine-based food supplements only).
• People on sodium, potassium or calcium-restricted diets, as these supplements can be an important source of these elements.
• Pregnant or breastfeeding women, as well as children, due to insufficient data on the safety of these products.

ANSES recommends that measures be taken by manufacturers to better inform consumers about the risks associated with the consumption of these food supplements by these specific populations.

It is possible that the French Authorities (DGCCRF) will recommend the labelling of warnings according to this scientific opinion.