Fava bean and buckwheat are sustainable food sources which support satiety and beneficially modulate several biomarkers, bacteria and metabolites associated with human health
Abstract
Background: The world's population requires adequate food supply, satisfying specific nutrient requirements to meet dietary recommendations, promote nutrition security and sustain health, while stimulating agriculture biodiversity. This study assessed the potential of buckwheat and fava bean to diversify the source of dietary nutrients.
Methods: Twenty healthy volunteers (n = 6 men, n = 14 women; 42.08 ± 12.12 years; body mass index 24.72 ± 4.69 kg/m2) were recruited in a randomised controlled crossover study consisting of two seven-day intervention periods, buckwheat- and fava bean-based diets were provided to meet individual volunteers resting metabolic rate requirements. The study assessed subjective hunger and the impact of the diets on the gut microbiota composition and the plasma profiles of lipids, glucose, insulin, urea and homocysteine. Plasma, urine and faecal metabolites were also measured before and after consumption of each diet using targeted metabolomics (LC- and GC-MS).
Results: Both intervention diets were as satiating as the volunteers' habitual diets (p = 0.234). The fava bean diet significantly reduced fasted plasma glucose and insulin and increased plasma homocysteine (p < 0.05). Buckwheat diet decreased plasma homocysteine (p < 0.01) and increased plasma, urine and faecal concentrations of salicylic acid and 2,3-dihydroxybenzoic acid. Both diets significantly increased plasma non-esterified fatty acids values, reduced plasma urea and faecal deoxycholic…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 14 participants or records.
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