The influence of saturated fatty acid consumption on energy and nutrient intake, blood lipid levels and iron indicators in a group of young women
1998
Ortega, R.M. | Quintas, M.E. | Gaspar, M.J. | Andres, P. | Lopez-Sobaler, A.M. | Navia, B. | Requejo, A.M.
The aim of the present investigation was to study the effects, in a group of 130 young women, of diets in which saturated fatty acid (SFA) content provided either < 10% of total energy intake (low consumption-LC) or > 10% (high consumption-HC), on energy and nutrient intake, a range of serum lipid parameters (indicators of cardiovascular risk), and the biochemical and blood indicators of iron status. Positive and significant correlations were found between energy supplied by SFA and the intake of meat (r=0.2500) (P < 0.01), lipids (r=0.49l7) (P < 0.00l), cholesterol (r=0.2627) (P < 0.01), iron (r=0.2978) (P < 0.0l) and calcium (r=0.2391) (P < 0.05). The greater consumption of SFA observed in HC subjects, despite its association with greater intakes of lipids and cholesterol, did not seem to be related to any impairment of blood lipid profiles. Neither was it seen to be related to increased bodyweight nor raised blood pressure. It should not, therefore, bring about any increased risk of cardiovascular disease. However, the greater intake of iron and calcium in HC subjects suggests that these may have a better nutritive status (with respect to certain nutrients) than LC subjects. In relation to iron status, HC subjects showed higher levels of haemoglobin and haematocrit. The development of criteria for the greatest protection against cardiovascular disease whilst maintaining good nutritive condition, should be the subject of future studies. Given their greater need of iron and calcium, it may be that different criteria are necessary for the female population.
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