The word from A Complete Handbook Of Nature Cure by H.K.Bakhru is that Color can dramatically affect our health. We can, in fact, have color deficiencies! This is fun health stuff and the anecdotal evidence is not too hard to believe.

Food comes in colors, too, and he suggests we use the correctly color-coded food to fill our color needs - bathing in colored light, as well, for "treatment". If this doesn't cure your disease you can at least use the information to improve your decorating :-)

Klein Becker's Relacor! An interesting mood-lifting product that really works to curb binge and stress eating via magnolia and passion flower (if you can believe it) as well as an impressive lineup of other ingredients! The magnolia action is the same as in Relora, which lowers cortisol, the stress hormone! Makes you feel better

What Color do you need?
The theory is you might be deficient in a color. To rectify the deficiency you should bathe in a light of that color and / or eat the foods of that color for optimum balance and health. The light of the sun contains 7 different colors and many believe adequate sunlight on the body is necessary for healing and health.

There is quite a history to colour therapy. In 1877 in Denmark Niels Finsen studied wound-healing with light, using red light to inhibit the formation of smallpox scars and founding what is now the Finsen Institute of Copenhagen for the phototreatment of tuberculosis. In 1932, Gerrard and Hessay, two Californian psychologists, scientifically established that blue light had a calming effect and red a stimulating power on human beings.

Red:
Symbol of heat, fire and anger. Stimulating, energizing . Stimulates arterial blood, warms extremities and valuable in treatment of low blood pressure, rheumatism, paralysis, anemia and advanced cases of tuberculosis. (Foods: Beets, radish, red cabbage, tomatoes, watercress, most red-skinned fruits,red berries and water melon.)

Orange:
Symbol of prosperity and pride. Stimulating blood supply and energizing the nerves. It is beneficial in the treatment of kidney and gall stones, hernia and appendicitis. It is also used to stimulate the milk producing action of breasts after childbirth. (Foods: carrot, orange, apricot, mango, peach and pappaya)

Violet:
Violet is beneficial in the treatment of nervous and emotional disturbances, arthritis, acute cases of consumption and insomnia. (Foods: Egg plant, berries, black carrot, grapes)

Yellow:
Joy and happiness. Yellow is laxative and diuretic (lemon juice!), stimulant to the brain, liver and spleen. It is considered effective in the treatment of diabetes, indigestion, kidney and liver disorders, constipation, eye (pumpkin) and throat infections, syphillis and impotence. (Foods: Lime and lemon, sweet lime, grapes, pumpkin, melon, banana, mango, yellow apple, guava)

Purple:
Purple or indigo combines blood-warming red and the cooling antiseptic blue. An excellent stimulant, beneficial to bad constipation, hydrocle, leucorrhoea, many disorders of the stomach and womb, cataract, migraine and skin disorders. It exerts a soothing effect on the eyes, ears and the nervous system. (Foods having both blue and violet colouring. )

Green:
Made up of the blue and yellow, green is regarded as a colour of harmony. A mild sedative, it's useful for nervous conditions, hay fever, ulcers, influenza, malaria , colds, sexual disorders and cancer. It preserves and strengthens eyesight. Being highly medicinal and depressive, it is of great help in the treatment of inflammatory conditions. (Foods: all greens, spinach, lettuces, peas, plantain, lettuce, pea, green mango, gooseberry, pears, beans , gourds)

Blue:
Cool, soothing and sedative. Blue alleviates pain, reduces bleeding, heals burns, helps dysentery, colic, asthma, respiratory disorders, high blood pressure and skin aberrations. In a study at the New England State Hospital in the United States, 25 members of staff with normal blood pressure were bathed in blue light for half an hour. It resulted in universal fall in blood pressure. The blood pressure rose when red light was applied. (Foods: Blue fruits and vegetables, blueberries, etc)

The warnings make sense: Yellow should not be used when the nerves are very active or irritable, red would harm an inflammatory condition and shouldn't be employed too long in any case, and blue, indigo and violet may be too cooling or constricting for cases like paralysis, rheumatism, or gout.

Links: http://healthlibrary.com/reading/ncure/chap8.htm