The reason may be that grandpa is old and has only eaten for a month, and the effect is not obvious. You know, after the age of 30, the loss rate of amino sugar in our body began to accelerate, and we could not synthesize it ourselves. Chondrocytes can't repair cartilage without sufficient nutrition, so the damage degree of cartilage increases with age, becomes thinner and brittle, and loses its protective effect on joints. Supplementing exogenous amino sugar can help middle-aged and elderly people maintain the normal function of articular cartilage.
Therefore, the subjects can insist on eating Nutrilite every day and take proper exercise, so as to better protect the joints.