Vasilaras T H, Astrup A, Raben A
Department of Human Nutrition, Centre for Advanced Food Studies, The Royal Veterinary and Agricultural University, Frederiksberg C, Denmark.
Eur J Clin Nutr. 2004 Feb;58(2):326-36. doi: 10.1038/sj.ejcn.1601785.
To investigate whether subjects consuming a fat-reduced, high-simple carbohydrate diet (SCHO) are at greater risk of micronutrient inadequacy than subjects consuming a fat-reduced, high-complex carbohydrate (CCHO) or a normal-fat diet (control, CD).
A 6-month randomised controlled dietary intervention trial with a parallel design.
In total, 46 overweight (BMI: 24.4-36.3 kg/m(2)) subjects (19 males, 27 females) aged 21-54 y consumed one of three ad libitum diets: SCHO, CCHO, or CD. Nutrient intake was assessed by a 7-day weighed food record.
Self-reported energy intake did not differ between diet groups. The lowest intake of vitamin B(12) was found in the SCHO group vs CCHO (P=0.025) and vs. CD (P=0.012). In men, zinc intake was lower on the SCHO diet compared to the CD diet (P=0.018). The recommendations for zinc and vitamin B(12) were, however, met by all the diet groups. No other diet differences were observed. Intake of several micronutrients were insufficient in all three diet groups, although in most cases comparable to average Danish intakes.
Zinc intake in men and vitamin B(12) intake in the combined gender groups were lower on a fat-reduced, simple carbohydrate-rich diet compared to a habitual, normal-fat diet, but not below recommended levels.
研究与食用脂肪含量降低、高复合碳水化合物（CCHO）饮食或正常脂肪饮食（对照组，CD）的受试者相比，食用脂肪含量降低、高简单碳水化合物（SCHO）饮食的受试者出现微量营养素不足的风险是否更高。
一项为期6个月的随机对照饮食干预试验，采用平行设计。
共有46名超重（BMI：24.4 - 36.3 kg/m²）、年龄在21 - 54岁的受试者（19名男性，27名女性）随意食用三种饮食之一：SCHO、CCHO或CD。通过7天称重食物记录评估营养素摄入量。
各饮食组自我报告的能量摄入量无差异。与CCHO组相比，SCHO组维生素B₁₂的摄入量最低（P = 0.025）；与CD组相比也最低（P = 0.012）。在男性中，SCHO饮食组的锌摄入量低于CD饮食组（P = 0.018）。然而，所有饮食组对锌和维生素B₁₂的摄入量均达到推荐水平。未观察到其他饮食差异。所有三个饮食组中几种微量营养素的摄入量均不足，不过在大多数情况下与丹麦人的平均摄入量相当。
与习惯性正常脂肪饮食相比，脂肪含量降低、富含简单碳水化合物的饮食使男性的锌摄入量以及综合性别组的维生素B₁₂摄入量降低，但未低于推荐水平。
