We are the leading nutritional and food ingredients supplier in China. Nutralong has provided valued customers more than 50 products â including Joint Health Products, Speciality Nutritions, Sweetener, Vitamins, Botanicals, Amino Acids, Natural Pigment etc. Headquartered in Qingdao, China, Nutralong maximizes its customer quality and value at all times, through our Related enterprise investment and R&Dï¼ GMP standard Glucosamine and Chondroitin Sulfate factories, which ensure the product quality, stable supply and traceability; Strong sourcing capability of working with over 100 manufacturers; Quality assurance system; In-house and third party laboratories; Individualized service and strategic support