Eating the right foods for joint health is very important because our body depends on good nutrition to keep us healthy. Without the proper nutrients from food, free radical damage can set in, resulting in poor health, fatigue and inflammation. Free radicals are unpaired molecules that can cause a great deal of damage in the body because they constantly are searching for a pair to bond to. This process weakens other cells and tissues in the body. Vitamins, minerals, amino acids and other nutrients help neutralize free radical damage.