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.
Magnesium rich foods like buckwheat are good for arthritis. Salmon is one of many foods naturally rich in magnesium. Magnesium for arthritis can be taken as an oral supplement and often comes in combination form with calcium and potassium.