Yacon (Smallanthus sonchifolius (Poepp.) H. Rob) is a natural source of fructooligosaccharides (FOS) studied for its potential as a functional food for prevention and management of chronic diseases, in part associated with its positive impact on glycemic response and body weight. However, yacon beneficial effect on glucose response and food intake control are still controversial. We investigated the acute effect of yacon consumption on glycemic response, subjective appetitive sensations, and food intake in a crossover trial. Fifteen healthy adults consumed 350 mL of yacon (21 g of yacon flour with 7.4 g of FOS) or control shake, on two non-consecutive days (washout). Yacon shake did not affect glycemic response, appetite or food intake. However, it is possible that positive effects of yacon consumption may turn evident only after its chronic consumption. Further studies are needed to assess the long-term effect of yacon consumption on glucose response and body weight control.

Yacon（小花Small（Poepp。）H。Rob）是低聚果糖（FOS）的天然来源，由于其作为预防和管理慢性病的功能性食品的潜力而被研究，部分原因是其对血糖反应和体重的积极影响。但是，yacon对葡萄糖反应和食物摄入控制的有益作用仍存在争议。我们在一项交叉试验中研究了食用烟熏油对血糖反应，主观食欲和食物摄入的急性影响。在连续两天（冲洗）的情况下，十五名健康的成年人食用了350 mL的Yacon（21 g的Yacon面粉和7.4 g的FOS）或对照奶昔。Yacon奶昔不会影响血糖反应，食欲或食物摄入量。但是，很可能只有长期食用Yacon后，才会对Yacon食用产生积极影响。