
The new findings support previous work by the researchers, which found a close link between lack of vitamin D in the bloodstream and the incidence and severity of breast, colon, ovarian and kidney cancers.
Higher blood levels of vitamin D have been found to be associated with a lower risk of colorectal cancer, according to a recent study published in the British Medical Journal.
Previous research by the UK's University of Warwick found that getting plenty of sun cuts the risk of heart disease and diabetes, too.
The Spartan Diet calls for plenty of sunshine, and for exercising outdoors. Exposure to the sun is vital for health. We recommend a nice long walk in the morning or late-afternoon sun every day, and also taking excercise outdoors whenever possible.