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A nutrigenetic approach to investigate the relationship between metabolic traits and vitamin D status in an Asian Indian population

Nutrients, ISSN: 2072-6643, Vol: 12, Issue: 5
2020
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Article Description

Studies in Asian Indians have examined the association of metabolic traits with vitamin D status. However, findings have been quite inconsistent. Hence, we aimed to explore the relationship between metabolic traits and 25-hydroxyvitamin D [25(OH)D] concentrations. We investigate whether this relationship was modified by lifestyle factors using a nutrigenetic approach in 545 Asian Indians randomly selected from the Chennai Urban Rural Epidemiology Study (219 normal glucose tolerant individuals, 151 with pre-diabetes and 175 individuals with type 2 diabetes). A metabolic genetic risk score (GRS) was developed using five common metabolic disease-related genetic variants. There was a significant interaction between metabolic GRS and carbohydrate intake (energy%) on 25(OH)D (P = 0.047). Individuals consuming a low carbohydrate diet (≤62%) and those having lesser number of metabolic risk alleles (GRS ≤ 1) had significantly higher levels of 25(OH)D (p = 0.033). Conversely, individuals consuming a high carbohydrate diet despite having lesser number of risk alleles did not show a significant increase in 25(OH)D (p = 0.662). In summary, our findings show that individuals carrying a smaller number of metabolic risk alleles are likely to have higher 25(OH)D levels if they consume a low carbohydrate diet. These data support the current dietary carbohydrate recommendations of 50%–60% energy suggesting that reduced metabolic genetic risk increases 25(OH)D.

Bibliographic Details

Alathari, Buthaina E; Bodhini, Dhanasekaran; Jayashri, Ramamoorthy; Lakshmipriya, Nagarajan; Shanthi Rani, Coimbatore Subramanian; Sudha, Vasudevan; Lovegrove, Julie A; Anjana, Ranjit Mohan; Mohan, Viswanathan; Radha, Venkatesan; Pradeepa, Rajendra; Vimaleswaran, Karani S

MDPI AG

Agricultural and Biological Sciences; Nursing

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