Is freeze-dried superfood kale supplementation healthier than common green peas? Outcomes of a cross-over trial

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dc.contributor.authorAldisi, Dara
dc.contributor.authorSabico, Shaun
dc.contributor.authorAlmiman, Abeer
dc.contributor.authorAl-Farraj, Amani
dc.contributor.authorBasaeed, Taghreed A.
dc.contributor.authorWani, Kaiser
dc.contributor.authorHussain, Syed D.
dc.contributor.authorAnsari, Mohammed G. A.
dc.contributor.authorMcTernan, Philip G.
dc.contributor.authorAl-Daghri, Nasser M.
dc.date.accessioned2024-07-31T10:43:12Z
dc.date.available2024-07-31T10:43:12Z
dc.date.issued2024-07-24
dc.descriptionopen access article
dc.description.abstractKale (Brassica oleracea species) is considered a functional food whose macronutrient and phytochemical contents are considered beneficial and widely considered as a superfood. In the present 6-week cross-over trial with a 2-week washout period, we compared the beneficial effects of freeze-dried kale over peas among Arab women with obesity. A total of 124 Saudi women with obesity were allocated to receive either freeze-dried kale (n = 62) or freeze-dried peas (n = 62) given in the form of 3-gram sachets thrice daily for 2 weeks, followed by a 2-week washout period and a cross-over of 4 weeks. Anthropometric measurements, glucose, lipids and markers of gut barrier function were assessed at baseline and post-intervention. Participants who took kale supplementation first resulted in significant weight reduction (p = 0.02) which was not observed among those who took peas first. Participants receiving pea supplementation first experienced a significant decline in Hba1c (p = 0.005) and CD14 (p = 0.03), but C-peptide increased (p = 0.05). Crossover analysis revealed significant carryover effects in most variables with non-significant combined treatment effects. Among the variables with no carryover effect with significant combined treatment effect include HbA1c which was in favor of the pea group (p = 0.005) and C-peptide which was modestly in favor of the kale group (p = 0.05). While both freeze dried kale and pea supplementation appear beneficial, supplementation of freeze-dried pea appears to be more effective in terms of acute glycemic control than kale. The study suggests that common but less-hyped vegetables such as pea maybe equally, if not more beneficial than the more expensive promoted superfoods such as kale. Longer clinical trials using a parallel design instead of cross-over are recommended to strengthen present findings.
dc.funderNo external funder
dc.identifier.citationAldisi, D., Sabico, S., Almiman, A., Al-Farraj, A., Basaeed, T.A., Wani, K., Hussain, S.D., Ansari, M.G.A., McTernan, P.G. and Al-Daghri, N.M. (2024) Is freeze-dried superfood kale supplementation healthier than common green peas? Outcomes of a cross-over trial. Frontiers Nutrition, 11, 1370677
dc.identifier.doihttps://doi.org/10.3389/fnut.2024.1370677
dc.identifier.issn2296-861X
dc.identifier.urihttps://hdl.handle.net/2086/24088
dc.peerreviewedYes
dc.publisherFrontiers
dc.relation.ispartofFrontiers in Nutrition
dc.titleIs freeze-dried superfood kale supplementation healthier than common green peas? Outcomes of a cross-over trial
dc.typeArticle
oaire.citation.volume11

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