Abstract
Vitamin D intakes are concerningly low. Food-based strategies are urgently warranted to increase vitamin D intakes and subsequently improve 25-hydroxyvitamin D (25(OH)D) concentrations. This acute randomised three-way crossover study investigated the efficacy of vitamin D biofortified pork derived from pigs exposed to UVB light to increase serum 25(OH)D 3 concentrations, compared to a dose-matched vitamin D 3 supplement and control pork in adults (n = 14). Blood samples were obtained at baseline and then 1.5, 3, 6, 9 and 24 h postprandially. There was a significant effect of time (p < 0.01) and a significant treatment*time interaction (p < 0.05). UV pork and supplement significantly increased within-group serum 25(OH)D 3 concentrations over timepoints (p < 0.05) (max. change 0.9 nmol/L (2.2%) UV pork, 1.5 nmol/L (3.5%) supplement, 0.7 nmol/L (1.9%) control). Vitamin D biofortified pork modestly increased 25(OH)D 3 concentrations and produced a similar response pattern as a dose-matched vitamin D supplement, but biofortification protocols should be further optimised to ensure differentiation from standard pork.
Original language | English |
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Pages (from-to) | 1-12 |
Number of pages | 12 |
Journal | International Journal of Food Sciences and Nutrition |
Early online date | 26 Feb 2023 |
DOIs | |
Publication status | Published online - 26 Feb 2023 |
Bibliographical note
Publisher Copyright:© 2023 Taylor & Francis Group, LLC.
Keywords
- Food Science
- 25(OH)D3
- vitamin D status
- RCT
- biofortification
- bioaddition
- pigs
- 25(OH)D