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This study aims to quantify the dietary intake of different fat classes in Lebanese adults, compare the intakes between adult age groups and gender and compare the intakes to the World Health Organization (WHO) recommendations. Despite the health benefits of the Mediterranean diet, the diet of Lebanese adults may be altered away from the typical dietary lipid profile, possibly by the increased consumption of trans fatty acids (TFAs) and the ratio of omega 6 (n-6) to omega 3 (n-3) fatty acids.

This is a cross-sectional survey conducted on 657 Lebanese adults (19-70 years) who completed the USA National Institute of Health diet history questionnaire.

Mean daily energy intake was estimated at 2,900 ± 1,466 kcal in men and 1,977 ± 902 kcal in women. Mean TFA consumption was significantly higher in men than in women (7.2 ± 1.9 and 6.8 ± 2.0 per cent of total fat, p < 0.001) and was at least double the WHO recommendations of 1 per cent of total energy, particularly among younger adults. The n-6 to n-3 fatty acid intake ratio, fluctuated around 9:1 in both genders and in all age groups and is higher than the maximum 5-to-1 ratio recommended by WHO. The mean intake of eicosapentaenoic acid and docosahexaenoic acid was significantly lower than the latest recommendations (147 ± 182 mg/day for men and 100 ± 155 mg/day for women).

Limited data exists on the quantity and quality of fat consumed among Lebanese adults. In conclusion, this descriptive study estimated the quantity of different fat classes consumed and compared the intakes of critical fatty acids to the WHO recommendations. Future studies need to address the implications of the high intakes of TFA and n-6 to n-3 ratio on health outcomes, including cardiometabolic diseases in our population.