Arthritis patients can take vitamins in moderation, and taking vitamins correctly can be beneficial to arthritis patients. There is a wide variety of vitamins in the body, which can be broadly categorized into fat-soluble and water-soluble categories. Fat-soluble vitamins include Vitamin A, Vitamin D, Vitamin E, and Vitamin K; and water-soluble vitamins include the B vitamins and Vitamin C. Taking the right vitamins for arthritis patients can help reduce symptoms. For example, vitamin B12 has a significant pain-relieving effect. It can improve the metabolic function of nerve fibers by enhancing protein and nucleic acid synthesis, and restore the integrity of myelin sheaths damaged by inflammation, thus achieving the purpose of pain relief. Vitamins also have the effect of slowing down the disease process of osteoarthritis patients, such as vitamin C can inhibit lipid oxidation through its antioxidant capacity and then play a role in protecting the cartilage and slowing down the progression of osteoarthritis; low concentrations of vitamin E can reduce oxidative stress, and then slow down the destruction of chondrocytes. Therefore, arthritis patients can take vitamins in moderation, but should take the right dose of vitamins under the guidance of a doctor, too much vitamins can also have adverse effects on the body. It is recommended that arthritis patients seek timely medical attention and consult their clinicians for specific questions to avoid taking them on their own.