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Effect of Some Dietary Oils and Fats on Serum Lipid Profile, Calcium Absorption and Bone Mineralization in Mice

Keywords: Oils , fats , lipid profile , calcium , bone density

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Abstract:

Amount and type of fats in the diet have an important effect on bone health and lipid profile. This study was conducted to investigate the effect of different types of dietary oils and fats on lipid profile, calcium absorption and bone mineralization in male mice. Mice weighing 25±5 g were divided into nine groups and fed on diets without oils or fats (control group) and containing soybean oil, corn oil, olive oil, palm oil, sunflower oil, butter, animal fat or margarine. Mice fed on diet containing soybean oil or olive oil had the lowest levels of TG, TC, LDL-c and HDL-c as compared to the other groups. Diets with palm oil, olive oil, sunflower oil, butter, animal fat or margarine caused significant decreases in the serum level of calcium as compared to the effect of diet without oils or fats. Mice fed diet containing olive oil, butter or animal fat had significant increase in bone density, while those fed diet containing soybean oil, corn oil, sunflower oil or margarine had significant decreases in femur bone density, compared to the control group. The apparent calcium absorption was significantly increased by feeding diets containing soybean oil, corn oil, palm oil, olive oil, sunflower oil, butter or animal fat. Dietary intake of vegetable oils improved lipid profile while butter, animal fat and margarine had the opposite effect. Butter and animal fats increased calcium and phosphorus deposition in femur bone more than vegetable oils.

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