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

Aldisi, D, Sabico, S, Almiman, A, Al-Farraj, A, Basaeed, TA, Wani, K, Hussain, SD, Ansari, MGA, McTernan, PG ORCID logoORCID: https://orcid.org/0000-0001-9023-0261 and Al-Daghri, NM, 2024. Is freeze-dried superfood kale supplementation healthier than common green peas? Outcomes of a cross-over trial. Frontiers in Nutrition, 11: 1370677. ISSN 2296-861X

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Abstract

Kale (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.

Item Type: Journal article
Publication Title: Frontiers in Nutrition
Creators: Aldisi, 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.
Publisher: Frontiers Media SA
Date: 2024
Volume: 11
ISSN: 2296-861X
Identifiers:
Number
Type
10.3389/fnut.2024.1370677
DOI
2184141
Other
Rights: © 2024 Aldisi, Sabico, Almiman, Al-Farraj, Basaeed, Wani, Hussain, Ansari, McTernan and Al-Daghri. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) (http://creativecommons.org/licenses/by/4.0/). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Divisions: Schools > School of Science and Technology
Record created by: Laura Ward
Date Added: 14 Aug 2024 14:59
Last Modified: 14 Aug 2024 14:59
URI: https://irep.ntu.ac.uk/id/eprint/52007

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