Onning G, Akesson B, Oste R, Lundquist I
Department of Applied Nutrition and Food Chemistry, University of Lund, Sweden.
Ann Nutr Metab. 1998;42(4):211-20. doi: 10.1159/000012736.
A drink based on oats has been developed with new technology. In this study the effects of this oat milk, soya milk and cow's milk on plasma lipid, glucose, insulin, and antioxidant status (measured as the ability of serum to suppress the formation of the radical cation ABTS*+) were compared in 24 healthy men and women. Half of the subjects (group A) consumed 0.75-1 liters/day of oat milk and soya milk for 4 weeks each, and the other half (group B) consumed oat milk and cow's milk for two 4-week periods. In the combined groups A plus B the oat milk regimen resulted in decreased plasma cholesterol (4%) and low-density lipoprotein (LDL) cholesterol (9%) levels as compared with baseline, but no changes in high-density lipoprotein cholesterol (HDL) and triglyceride values were observed. Also soya milk consumption resulted in decreased LDL cholesterol concentrations. The only significant plasma lipid change observed during consumption of cow's milk was an increase in HDL cholesterol. No consistent changes in body weight, fasting blood glucose, serum insulin, and antioxidant status occurred after consumption of any milk regimen. A significant correlation between baseline antioxidant status and total plasma cholesterol was found (r = -0.56). It is proposed that the high content of beta-glucans in oat milk was responsible for the decreased plasma cholesterol and LDL cholesterol concentrations, but the effect could also be due to a replacement of saturated fat in the customary diet by unsaturated fat. It is concluded that oat milk can be used as an alternative to other milk drinks by subjects who would benefit from reduced LDL cholesterol values.
一种基于燕麦的饮品已通过新技术研发出来。在本研究中，对24名健康男性和女性比较了这种燕麦奶、豆奶和牛奶对血浆脂质、葡萄糖、胰岛素及抗氧化状态（以血清抑制自由基阳离子ABTS*+形成的能力来衡量）的影响。一半受试者（A组）分别连续4周每天饮用0.75 - 1升燕麦奶和豆奶，另一半（B组）在两个4周期间饮用燕麦奶和牛奶。在A组与B组合并的情况下，与基线相比，燕麦奶饮食方案使血浆胆固醇水平降低了4%，低密度脂蛋白（LDL）胆固醇水平降低了9%，但高密度脂蛋白胆固醇（HDL）和甘油三酯值未观察到变化。饮用豆奶也导致LDL胆固醇浓度降低。饮用牛奶期间观察到的唯一显著血浆脂质变化是HDL胆固醇升高。饮用任何一种牛奶饮食方案后，体重、空腹血糖、血清胰岛素及抗氧化状态均未出现一致变化。发现基线抗氧化状态与总血浆胆固醇之间存在显著相关性（r = -0.56）。有人提出，燕麦奶中高含量的β-葡聚糖是血浆胆固醇和LDL胆固醇浓度降低的原因，但这种效果也可能是由于日常饮食中饱和脂肪被不饱和脂肪替代所致。得出的结论是，对于能从降低LDL胆固醇值中获益的受试者，燕麦奶可作为其他奶类饮品的替代品。
