Liposomal Mineral Absorption: A Randomized Crossover Trial
Multivitamin/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 female...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-08-01
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| Series: | Nutrients |
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| Online Access: | https://www.mdpi.com/2072-6643/14/16/3321 |
| _version_ | 1797408593435164672 |
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| author | Grant M. Tinsley Patrick S. Harty Matthew T. Stratton Madelin R. Siedler Christian Rodriguez |
| author_facet | Grant M. Tinsley Patrick S. Harty Matthew T. Stratton Madelin R. Siedler Christian Rodriguez |
| author_sort | Grant M. Tinsley |
| collection | DOAJ |
| description | Multivitamin/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 (<i>p</i> = 0.002), rank of percent change from baseline (<i>p</i> = 0.01), and raw concentrations (<i>p</i> = 0.02). Follow-up testing indicated that the liposomal condition exhibited larger changes from baseline than the standard MVM condition at 4 (<i>p</i> = 0.0001; +14.3 ± 18.5% vs. −6.0 ± 13.1%) and 6 h (<i>p</i> = 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; <i>p</i> = 0.02, Cohen’s <i>d</i> 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. |
| first_indexed | 2024-03-09T04:00:40Z |
| format | Article |
| id | doaj.art-a6a014ce7eea42779495bd9566f4724c |
| institution | Directory Open Access Journal |
| issn | 2072-6643 |
| language | English |
| last_indexed | 2024-03-09T04:00:40Z |
| publishDate | 2022-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nutrients |
| spelling | doaj.art-a6a014ce7eea42779495bd9566f4724c2023-12-03T14:14:13ZengMDPI AGNutrients2072-66432022-08-011416332110.3390/nu14163321Liposomal Mineral Absorption: A Randomized Crossover TrialGrant M. Tinsley0Patrick S. Harty1Matthew T. Stratton2Madelin R. Siedler3Christian Rodriguez4Energy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USAEnergy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USAEnergy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USAEnergy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USAEnergy Balance & Body Composition Laboratory, Department of Kinesiology & Sport Management, Texas Tech University, Lubbock, TX 79409, USAMultivitamin/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 (<i>p</i> = 0.002), rank of percent change from baseline (<i>p</i> = 0.01), and raw concentrations (<i>p</i> = 0.02). Follow-up testing indicated that the liposomal condition exhibited larger changes from baseline than the standard MVM condition at 4 (<i>p</i> = 0.0001; +14.3 ± 18.5% vs. −6.0 ± 13.1%) and 6 h (<i>p</i> = 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; <i>p</i> = 0.02, Cohen’s <i>d</i> 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.https://www.mdpi.com/2072-6643/14/16/3321ironmagnesiummultivitaminliposomesmicronutrientsbioavailability |
| spellingShingle | Grant M. Tinsley Patrick S. Harty Matthew T. Stratton Madelin R. Siedler Christian Rodriguez Liposomal Mineral Absorption: A Randomized Crossover Trial Nutrients iron magnesium multivitamin liposomes micronutrients bioavailability |
| title | Liposomal Mineral Absorption: A Randomized Crossover Trial |
| title_full | Liposomal Mineral Absorption: A Randomized Crossover Trial |
| title_fullStr | Liposomal Mineral Absorption: A Randomized Crossover Trial |
| title_full_unstemmed | Liposomal Mineral Absorption: A Randomized Crossover Trial |
| title_short | Liposomal Mineral Absorption: A Randomized Crossover Trial |
| title_sort | liposomal mineral absorption a randomized crossover trial |
| topic | iron magnesium multivitamin liposomes micronutrients bioavailability |
| url | https://www.mdpi.com/2072-6643/14/16/3321 |
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