Emmett P M, Heaton K W
University Department of Medicine, Bristol Royal Infirmary, UK.
Lancet. 1995 Jun 17;345(8964):1537-40. doi: 10.1016/s0140-6736(95)91087-5.
Although many guidelines to healthy eating recommend restriction of the intake of extrinsic (refined) sugar, there are concerns that such restriction might result in an increase in the amount and the proportion of dietary fats with a consequent possible increase in the risk of cardiovascular disease. We used regression analysis to examine the determinants of fat intake in subjects from a population survey who had weighed their food for 4 days. In men (n = 77) and women (n = 83), fat eaten was positively related to the intake of extrinsic sugar. When intakes were expressed as percent of calories the relation became negative. A survey in a semi-random sample of 739 men aged 40-69 yr and 976 women aged 25-69 yr showed that, in both sexes, an increase in extrinsic sugar was associated with a linear increase in the intake of sweetened fat and hence of fat combined with carbohydrate. This was due mainly to a higher intake of cakes and biscuits. Foods containing sugar and fat provided an extra 12.0 g per day of fat in the men and 13.8 g per day in the women when the highest quartile of extrinsic sugar consumers were compared with the lowest quartile. We conclude that lowering the intake of extrinsic sugar is unlikely to be associated with higher fat intake. Instead extrinsic sugar may act as a vehicle for fat intake, encouraging consumption by making the fat more palatable.
尽管许多健康饮食指南都建议限制外源（精制）糖的摄入量，但有人担心这种限制可能会导致膳食脂肪的量和比例增加，从而可能增加心血管疾病的风险。我们使用回归分析来研究来自一项人口调查的受试者的脂肪摄入量的决定因素，这些受试者已对其食物称重4天。在男性（n = 77）和女性（n = 83）中，摄入的脂肪与外源糖的摄入量呈正相关。当摄入量以卡路里百分比表示时，这种关系变为负相关。对739名40 - 69岁男性和976名25 - 69岁女性的半随机样本进行的一项调查显示，在两性中，外源糖的增加与加糖脂肪的摄入量线性增加相关，因此与脂肪和碳水化合物结合的摄入量也线性增加。这主要是由于蛋糕和饼干的摄入量较高。当将外源糖消费者的最高四分位数与最低四分位数进行比较时，含糖和脂肪的食物在男性中每天额外提供12.0克脂肪，在女性中每天额外提供13.8克脂肪。我们得出结论，降低外源糖的摄入量不太可能与更高的脂肪摄入量相关。相反，外源糖可能充当脂肪摄入的载体，通过使脂肪更美味来鼓励消费。
