Liposomal Mineral Absorption: A Randomized Crossover Trial

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dc.creatorTinsley, Grant M (TTU)
dc.creatorHarty, Patrick S (TTU)
dc.creatorStratton, Matthew T (TTU)
dc.creatorSiedler, Madelin R (TTU)
dc.creatorRodriguez, Christian (TTU)
dc.date.accessioned2023-02-21T20:14:19Z
dc.date.available2023-02-21T20:14:19Z
dc.date.issued2022
dc.description© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).en_US
dc.description.abstractMultivitamin/mineral (MVM) supplements are one of the most popular dietary supplement categories. The purpose of this analysis was to determine if a novel liposomal delivery mechanism improves mineral absorption from an MVM product. In a randomized crossover trial, 25 healthy participants (12 females, 13 males) completed two testing sessions in which blood samples were collected at baseline and 2, 4, and 6 h following the ingestion of either a liposomal MVM or a nutrient-matched standard MVM. Analysis of MVM products indicated an elemental iron content of 9.4 and 10.1 mg (~50% U.S. FDA Daily Value) and an elemental magnesium content of 22.0 and 23.3 mg (~5% U.S. FDA Daily Value) in the liposomal and standard MVM products, respectively. Blood samples were analyzed for concentrations of iron and magnesium using colorimetric assays. Changes in mineral concentrations were analyzed using linear mixed models, and pharmacokinetic parameters were compared between conditions. For iron, statistically significant condition × time interactions were observed for percent change from baseline (p = 0.002), rank of percent change from baseline (p = 0.01), and raw concentrations (p = 0.02). Follow-up testing indicated that the liposomal condition exhibited larger changes from baseline than the standard MVM condition at 4 (p = 0.0001; +14.3 ± 18.5% vs. −6.0 ± 13.1%) and 6 h (p = 0.0002; +1.0 ± 20.9% vs. −21.0 ± 15.3%) following MVM ingestion. These changes were further supported by a 50% greater mean incremental area under the curve in the liposomal condition (33.2 ± 30.9 vs. 19.8 ± 19.8 mcg/dL × 6 h; p = 0.02, Cohen’s d effect size = 0.52). In contrast, no differential effects for magnesium absorption were observed. In conclusion, iron absorption from an MVM product is enhanced by a liposomal delivery mechanism.en_US
dc.identifier.citationTinsley GM, Harty PS, Stratton MT, Siedler MR, Rodriguez C. Liposomal Mineral Absorption: A Randomized Crossover Trial. Nutrients. 2022; 14(16):3321. https://doi.org/10.3390/nu14163321en_US
dc.identifier.urihttps://doi.org/10.3390/nu14163321
dc.identifier.urihttps://hdl.handle.net/2346/90785
dc.language.isoengen_US
dc.subjectIronen_US
dc.subjectMagnesiumen_US
dc.subjectMultivitaminen_US
dc.subjectLiposomesen_US
dc.subjectMicronutrientsen_US
dc.subjectBioavailabilityen_US
dc.subjectAbsorptionen_US
dc.titleLiposomal Mineral Absorption: A Randomized Crossover Trialen_US
dc.typeArticleen_US

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