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.
Stockbyte/Stockbyte/Getty Images. Vitamin C. Vitamin C is another important vitamin for joint health. First of all, vitamin C is more effective when combined with other antioxidants such as vitamins A., E, and D. Vitamin C improves cell regeneration along with reducing inflammation.itamin A is a very important vitamin because it reduces inflammation in the body. Joints typically ache due to inflammation from arthritis, injury or overuse. Vitamin A is found in carrots, broccoli, spinach, parsley, and other greens.