Nutrition and diet play several important roles in the management of knee arthritis.
It has been medically shown that even modest weight loss makes a big difference to knee pain, as for each unit of weight lost there is a four-fold decrease in the unit of load on the knee.
As osteoarthritis of the knee often has a physical originating cause (eg. meniscal tear), it is clear that even small people may suffer from arthritis. Being overweight, however, simply puts more strain on the joints and most sensible weight reduction regimes will benefit arthritis sufferers
You can check your ideal weight on average height and weight charts.
There are several studies which indicate that we do not drink enough water (on its own - not in coffee, tea or soft drinks) - and that this chronic dehydration can aggravate arthritic pain.
Certain supplements are of particular interest in arthritis -
A combination of glucosamine, chondroitin and MSM is the most economical way to take the last three supplements. The tablets can be quite large and a liquid drink is a palatable alternative.
This excellent book challenges the Arthritis Foundation, and highlights research showing links between arthritis and what we eat -
How to eat away arthritis: Gain Relief from the Pain and Discomfort of Arthritis Through Nature's Remedies. by Laurie M Aesoph
Medical research has also found a link between smoking and the development of osteoarthritis.
Some arthritic disorders are specifically triggered or aggravated by particular foods, eg gout.