Higher intakes of dietary caffeine are associated with 25-hydroxyvitamin D deficiency

Chen, Qiwei; Kord‐Varkaneh, Hamed; Santos, Heitor O.; Genário, Rafael; Dang, Minyan

doi:10.1024/0300-9831/a000727

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…Several other studies reported inconsistent findings regarding vitamin D levels and caffeine intake (45)(46)(47). Although there are contradictions in reports of coffee consumption and vitamin D levels, the results of our study are in line with the two biggest studies performed in healthy adult individuals (42,43).…”

Section: Inverse Associations Between Food Groups and Vitamin D Level...supporting

confidence: 87%

“…Regarding association of coffee intake and vitamin D levels, two large-scale observational studies reported negative association between vitamin D levels and coffee intake (42,43). Another study of 741 premenopausal women, which is more similar to ours with respect to the age and the sex of participants, found statistically significant association between higher intake of caffeine containing cola drinks, assessed through FFQ, and decreased vitamin D levels (44).…”

Section: Inverse Associations Between Food Groups and Vitamin D Level...supporting

confidence: 78%

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Associations between vitamin D levels and dietary patterns in patients with Hashimoto’s thyroiditis

et al. 2023

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IntroductionVitamin D insufficiency is a global health problem affecting healthy and diseased individuals, including patients with Hashimoto’s thyroiditis (HT). Identifying dietary factors that may affect vitamin D levels and providing dietary guidelines accordingly can alleviate this problem. We therefore aimed to identify still unknown associations of dietary patterns, assessed through the Food Frequency Questionnaire (FFQ) with vitamin D blood levels.Materials and methodsFFQ was collected from 459 patients from Croatian Biobank of Patients with Hashimoto’s thyroiditis (CROHT), while total 25(OH)D was measured from their stored serum samples. We performed linear regression analysis between vitamin D levels and weekly intake of 24 food groups in 459 patients with HT (ALL), and in two disease-severity groups (MILD and OVERT).ResultsThe main results of our study are observations of: (1) an inverse association between vitamin D levels and coffee consumption (ALL: β = −0.433, p = 0.005; OVERT: β = −0.62, p = 0.008); (2) an inverse association between vitamin D levels and sweets consumption (ALL: β = −0.195, p = 0.034; OVERT: β = −0.431, p = 0.006); (3) positive association between vitamin D levels and vegetable consumption (ALL: β = 0.182, p = 0.019; OVERT, β = 0.311, p = 0.009). Importantly, effect sizes of all three associations were more prominent in HT patients with prolonged and more severe disease (OVERT).ConclusionFurther research into the functional and causal relationships of the observed associations is important to provide guidance regarding coffee/sugar intake on vitamin D status. A well-balanced diet can help prevent vitamin D deficiency and improve the quality of life of patients with HT, especially those in later stages of disease characterized by greater metabolic imbalance.

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Section: Inverse Associations Between Food Groups and Vitamin D Level...supporting

confidence: 87%

Section: Inverse Associations Between Food Groups and Vitamin D Level...supporting

confidence: 78%

Associations between vitamin D levels and dietary patterns in patients with Hashimoto’s thyroiditis

et al. 2023

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“…Low serum 25(OH)D levels continue to be a problem worldwide. While some in vitro studies show a caffeine-induced decrease in vitamin D receptor expression, more research is needed to determine the extent of caffeine consumption and its effects on 25(OH)D levels [ 13 ]. This study has found no significant differences between vitamin D levels of the women with different amounts of milk consumption in both groups.…”

Section: Discussionmentioning

confidence: 99%

Dietary Consumption With Vitamin D Status Among Pregnant Women: A Descriptive-Analytic Study

Kareem Mohammed

2023

Cureus

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Aim: This study aimed to investigate the relationship between vitamin D status and diet between pregnant and non-pregnant women who attended a Maternity Teaching Hospital (MTH) in Sulaymaniyah, Iraq. Materials and methods: A descriptive-analytic (cross-sectional) study was conducted at the MTH in Sulaymaniyah, Iraq. Data was collected from January to October 2022, including demographics, obstetric information, and dietary data. Vitamin D levels were measured using the Roche Elecsys assay (Roche Diagnostics, Indianapolis, Indiana, United States). The non-pregnant group consisted of women who were not pregnant at the time of this study, and the pregnant group had women with second trimester pregnancy at the time of enrollment. Result: The study revealed a significant prevalence of vitamin D deficiency among pregnant women. In the study, pregnant participants (56.0% aged 30-39) and non-pregnant participants (54.3% aged 20-29) had similar ages (p>0.05). Both groups mostly had overweight individuals, with pregnant participants having a slightly higher mean body mass index (BMI). While vitamin D deficiency was more prevalent among pregnant women, the differences were not statistically significant. Notably, higher dairy intake was positively associated with higher vitamin D levels. Urban residency was common in both groups. Dietary habits were mostly similar, except for tea consumption (p<0.05), with non-tea drinkers having higher vitamin D levels. However, dietary patterns did not strongly correlate with vitamin D levels in the non-pregnant group. Conclusion: This study reveals a significant prevalence of vitamin D deficiency among pregnant women, although the differences between pregnant and non-pregnant groups were not statistically significant. The positive association between higher dairy intake and increased vitamin D levels underscores the potential impact of dietary choices on vitamin D status during pregnancy. However, the study also suggests that dietary patterns alone may not strongly correlate with vitamin D levels in non-pregnant women. Overall, this highlights the importance of addressing vitamin D deficiency in pregnant women and underscores the need for personalized dietary guidance, taking into account individual preferences and habits to promote better maternal health.

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The Effects of Vitamin D on Markers of Glucose and Obesity in Postmenopausal Women: A Meta-analysis of Randomized Controlled Trials

Hao,

Lu,

Gao

et al. 2023

Clinical Therapeutics

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Higher intakes of dietary caffeine are associated with 25-hydroxyvitamin D deficiency

Cited by 6 publications

References 35 publications

Associations between vitamin D levels and dietary patterns in patients with Hashimoto’s thyroiditis

Associations between vitamin D levels and dietary patterns in patients with Hashimoto’s thyroiditis

Dietary Consumption With Vitamin D Status Among Pregnant Women: A Descriptive-Analytic Study

The Effects of Vitamin D on Markers of Glucose and Obesity in Postmenopausal Women: A Meta-analysis of Randomized Controlled Trials

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