what is chondroitin for

{"cid":"91150639","title":"MUI Chondroitin Sulfate Calcium Supplements Tablets Strawberry Nutra Ceutical","imgUrl":"https:\/\/img.chinax.com\/nimg\/ae\/91\/35617fd8527f63300a3315954877-200x200-1.jpg","attrs":{"Brand Name":"Do's Farm Food Supplement Manufacturer","Model Number":"Liver Detox Nutraceutical Food","Delivery Time":"15-20 work days","Certification":"ISO22000 \/ HACCP \/ HALAL \/ MUI","Place of Origin":"China","Payment Terms":"L\/C, T\/T","Item":"Do's Farm Calcium Supplements","Taste":"Strawberry, Customized.","Material Origin":"Imported from Australia.","Container":"Food-grade plastic jar.","Selling Point":"Support tablets shape, packing, formula, flavor ODM&OEM service.","Sales Channel":"Supermarkets, Convenience Shops, Grocery, Pharmacy chain","Customized Flavor":"Accepted.","Customized Service":"Supporting OEM&ODM service.","Lead Time":"15-25 days with deposit and confirmed design.","Packaging Way":"Plastic jar.","Free Samples":"Available.","Test Reports":"Available."}}

{"cid":"91092221","title":"Chondroitin Sulphate","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/cb\/35092aab45a12fa19aa13c3fb9b1-200x200-1.jpg","attrs":{"Payment Terms":"T\/T L\/C"}}

{"cid":"91220339","title":"Animal Feed Organic Protein Chelated Mn Soluble In Water","imgUrl":"https:\/\/img.chinax.com\/nimg\/71\/a5\/dc1c4a9248760484c7cc39ac68e9-200x200-1.jpg","attrs":{"Price":"USD 800- USD 3500","Minimum Order Quantity":"1MT","Packaging Details":"20kg\u300125kg\/bag","Crude protein %":"\u226518%","Manganese":"6%","Color":"Light Yellow","Form":"Powder","Heavy Metals (As Pb)":"\u226410ppm","Moisture":"\u22645%","Odor":"Slight Amino Acid Odor","Organic Manganese":"More than 15%","Ph":"4.5-5.5","Solubility":"Soluble in Water","Storage":"Store in a cool and dry place","Water Content":"5%"}}