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Research Updates | Diabetes

Serum glucose response to soaked oats

24 / 04 / 19

Finding: Oats soaked overnight with or without sugar, nuts and seeds retain their low glycemic and insulinaemic impact.

Summary:

It is unknown whether soaking oats overnight affects glycaemic and insulinaemic impact. This study measured glycaemic, insulinaemic and subjective hunger responses of consuming oats soaked in skim milk overnight (O/N Oats) vs cooked cream of rice cereal (CrRice), both with and without added sugar, nuts and seeds (sns) in a crossover study design in fasted subjects without diabetes. The mean glucose area under the curve (iAUC) was 33% less for O/NOats than CrRice. The iAUC was a further 24% lower when sugar, nuts and seeds were added to the oats (O/NOats+sns) than the creamed rice (CrRice+sns). The serum insulin iAUC was 33% less in ONO than CrRice and a further 32% less in O/NOats+sns compared to CrRice+sns. Subjective hunger ratings were similar across the two treatments. Overnight oats elicited a significantly lower glucose response than creamed rice, regardless whether they were alone or with the addition of sugar, nuts and seeds.

Citation:

Wolever TMS, Jones PJH, Jenkins AL et al. Glycaemic and insulinaemic impact of oats soaked overnight in milk vs. cream of rice with and without sugar, nuts, and seeds: a randomized, controlled trial. Eur J Clin Nutr 2019;73(1):86-93