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. 2022 Oct 14;128(7):1335-1348.
doi: 10.1017/S0007114521002105. Epub 2021 Jun 14.

Mediterranean Diet and cardiovascular health: an historical perspective

Affiliations

Mediterranean Diet and cardiovascular health: an historical perspective

Jacques Delarue. Br J Nutr. .

Abstract

The first investigation of dietary intake in the Mediterranean region was undertaken at the initiative of the government of Greece in 1948. Plant foods (cereals, pulses, nuts, potatoes, vegetables and fruits) accounted for 61 % of total energy intake (TEI), animal foods (meat, eggs, fish and dairy products) for 7 % of TEI and olive oil was the main oil used. In 1950s, Ancel Keys undertook studies in USA, Italy, Spain, England, Japan, Australia and Canada leading him to hypothesise that a link could exist between diet, plasma cholesterol and CHD. Between 1958 and 1964, Keys and co-workers carried out the Seven Countries Study, which enrolled men aged 40-59 years in one of sixteen cohorts from seven countries (Finland, Greece, Italy, Yugoslavia, Japan, USA and Italy). After 15-, 25- and 50-year follow-up, a strong positive relation was observed between saturated fat intake and CHD mortality, and a negative one with Mediterranean Dietary Index. In 1975, Keys and his wife published a book entitled: 'How to eat well and stay well. The Mediterranean way', which popularised Mediterranean Diet (MedDiet). After 45-year follow-up, longevity without CHD death was 12·9 years higher in Crete than in Finland. Protecting effect of MedDiet towards CHD incidence and risk is now confirmed by Prevencion con Dieta Mediterranea study and by cohorts' studies gathered in several recent meta-analyses. MedDiet is sustainable and recognised by UNESCO as an intangible cultural heritage, which is the most beautiful homage that can be paid to Ancel Keys and all his co-workers.

Keywords: Ancel keys; CHD; Fatty acids; Seven Countries Study.

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