Chondroitin sulfate sodium supplies one of the building blocks of cartilage. People take it to maintain joint comfort and everyday mobility. Many formulas pair it with glucosamine. Splitting the dose across meals helps with absorption since uptake can vary from person to person.
Mild stomach upset or nausea may occur. Taking it with food tends to reduce that chance. Stick with consistent daily use for best results. Talk to a doctor before starting any new supplement.