The colourful Mediterranean Diet, or Rainbow Diet, has moderate to high evidence that it has a beneficial effect on type-2 diabetes, cardiovascular disease, metabolic syndrome and obesity, according to a clinical-level meta-analysis (1).
The purpose of the study was to apply a clinical-standard review to the various research studies and claims for the diet.
A systematic review was formulated to answer 5 Clinical Questions. An original review using 37 studies was complemented with a further 20 studies reported on between September 2013 and July 2016.
Researchers concluded that:
- There is a high level of evidence showing that adherence to the Rainbow Diet
a. plays a role in the primary and secondary prevention of cardiovascular disease (CVD), and,
b. Improves health in overweight and obese patients.
- There is moderate-to-high evidence that adherence to the Rainbow Diet
a. prevents increases in weight and waist circumference in non-obese individuals, and,
b. improves metabolic syndrome and reduces its incidence.
- There is moderate evidence that the adherence to the Rainbow Diet
a. plays primary and secondary roles in the prevention of type 2 diabetes mellitus.
The colourful Mediterranean Diet is effective in preventing obesity and Metabolic Syndrome in healthy and at-risk
individuals, in reducing mortality risk in overweight or obese individuals, in decreasing the incidence of type-2 diabetes and cardiovascular disease in healthy individuals, and in reducing symptom severity in individuals with either or both.