Dehydration occurs when fluid levels drop to less than normal. This is due to either reduced water intake or increased fluid loss. Overheating in hot weather, increased activity or a bout of vomiting or diarrhea can all result in fluid loss in cats.
Whole Grains. Start eating more whole grains, a fiber-rich food, to improve your joints. Fiber helps lower levels of a harmful substance known as c-reactive protein that leads to higher inflammation levels throughout the body, including the joints, according to the Arthritis Foundation.
If you have joint pain from rheumatoid arthritis (RA), eat more fish. Fatty cold-water types like salmon and mackerel are good sources of omega-3 fatty acids. Omega-3s may help keep joints healthy, as well as lower inflammation, a cause of joint pain and tenderness in people with RA.