Hypovitaminosis D in Adults Living in a Sunny City: Relation to Some Cardiometabolic Risk Factors, National Food and Nutrition Surveillance

Nikooyeh, Bahareh; Hajifaraji, Majid; Yarparvar, Amirhossein; Abdollahi, Zahra; Sahebdel, Mahnoosh; Dehkordi, Amaneh Mosayebi; Norouzi, Dena; Taghizadeh, Seyed Masoumeh; Kalayi, Ali; Shariátzadeh, Nastaran; Zahedirad, Maliheh

doi:10.29252/nfsr.5.1.9

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…The study protocol has been comprehensively described elsewhere [ 28 ]. This was a double-blind clinical trial.…”

Section: Methodsmentioning

confidence: 99%

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Daily consumption of γ-oryzanol-fortified canola oil, compared with unfortified canola and sunflower oils, resulted in a better improvement of certain cardiometabolic biomarkers of adult subjects with type 2 diabetes: a randomized controlled clinical trial

Nikooyeh,

Zargaraan,

Ebrahimof

et al. 2023

Eur J Med Res

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Background This study was undertaken to examine the effects of daily consumption of γ-oryzanol (ORZ)-fortified canola oil, as compared with plain canola and sunflower oils, on certain cardiometabolic indicators. Methods Ninety-two adult subjects from both sexes with T2D were randomly assigned to one of the three groups to receive: (a) ORZ-fortified canola oil (Group 1; n1 = 30); (b) unfortified canola oil (Group 2; n2 = 32); or (c) sunflower oil (Group 3; n3 = 30) for 12 weeks. The participants were instructed to use only the given oils for all cooking (but frying) purposes. Anthropometric, dietary and biochemical assessments were done initially and finally. Results Though body mass index (BMI) significantly decreased in all three groups, only in Groups 1 and 2 waist circumference (WC) showed a significant decrement (-2.6 ± 0.1 and -2.2 ± 0.1 cm in Groups 1 and 2 respectively, p < 0.001 for both) which was accompanied by a significant reduction of blood pressure just in Group 1. Fasting blood glucose (FBG) and glycated hemoglobin (HbA1c) showed a significant decrease only in ORZ-fortified canola oil group (−7.7 ± 0.4 mg/dL, p = 0.039 and −0.7 ± 0.1%, p < 0.001, respectively). However, insulin resistance, as judged by HOMA-IR, did not change significantly. In addition, serum triglyceride (TG) concentrations decreased in all three groups but only in ORZ-fortified canola oil was this decrement statistically significant (-17.9 ± 2.1 mg/dL, p = 0.005). Other components of serum lipid profile did not change significantly in either group. Conclusions Consumption of either sunflower or canola oils for 12 weeks improved certain studied biomarkers. However, only ORZ-fortified canola oil resulted in a significant decrease of blood pressure, WC, FBG, HbA1c and TG. These findings can help both clinicians and public health authorities for dietary recommendations to subjects with T2D and presumably the whole community. Trial registration: number at clinicaltrials.gov (NCT05271045).

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“…The study protocol has been comprehensively described elsewhere [ 28 ]. This was a double-blind clinical trial.…”

Section: Methodsmentioning

confidence: 99%

“…Blood pressure was measured while the subject was in a sitting position and after at least five minutes rest. In this study, the mean of two measurements was considered as the subject’s blood pressure value (mmHg) [ 28 ].…”

Section: Methodsmentioning

confidence: 99%

Daily consumption of γ-oryzanol-fortified canola oil, compared with unfortified canola and sunflower oils, resulted in a better improvement of certain cardiometabolic biomarkers of adult subjects with type 2 diabetes: a randomized controlled clinical trial

Nikooyeh,

Zargaraan,

Ebrahimof

et al. 2023

Eur J Med Res

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“…Though sun generously donates its warmth and UV rays to many parts of the world, poor vitamin D status is a global problem, surprisingly even in sunny areas. [4] Sun exposure behaviors, type of clothing, use of sunscreens, air pollution, and indoor living are among the determinant factors. [5] It is expected that athletes, as a part of general population, are affected by some degrees of vitamin D deficiency (VDD).…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Vitamin D supplementation in physical performance of Iranian elite athletes

et al. 2019

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Background: There has been no report of the vitamin D status of the professional athletes from Iran to date. This study was performed to evaluate the efficacy of weekly vitamin D supplementation on athletic performance in Iranian athletes expedited to Asian competition in Taipei, China, 2015. Methods: This study was a randomized controlled clinical trial. Seventy subjects were enrolled in the study. The athletes were randomly divided into two groups: vitamin D supplement (D; received 50,000 IU of vitamin D supplement weekly) and control (P, received a placebo weekly). Duration of the study was 8 weeks. Anthropometric, dietary, athletic performance, and biochemical evaluations were performed for all subjects in the beginning and in the end of the intervention period. Results: A significant rise in circulating 25(OH)D concentration was observed in D group (17.3 ± 16.9 ng/mL, P < 0.001), whereas in P group, there was a statistically significant decrement (−3.1 ± 8.4 ng/mL, P = 0.040). There were no either within- or between-group significant differences in Ergo jump, vertical jump, and agility tests. In strength leg press tests, both groups showed a significant improvement. However, comparisons of changes revealed that the improvement in D group was significantly higher than in P group ( P = 0.034). Moreover, in sprint test (one repetition-Max, 1RM), only D group had a significant within-group improvement ( P = 0.030). Conclusions: Weekly supplementation with 50,000 IU vitamin D resulted in nearly 17 ng/mL increment in circulating calcidiol. This increase was associated with significant improvement of power leg press and sprint tests in D-supplemented group.

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Vitamin D, oxidative stress, and diabetes: crossroads for new therapeutic approaches

Nikooyeh

Anari

2020

Diabetes

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Hypovitaminosis D in Adults Living in a Sunny City: Relation to Some Cardiometabolic Risk Factors, National Food and Nutrition Surveillance

Cited by 4 publications

References 32 publications

Daily consumption of γ-oryzanol-fortified canola oil, compared with unfortified canola and sunflower oils, resulted in a better improvement of certain cardiometabolic biomarkers of adult subjects with type 2 diabetes: a randomized controlled clinical trial

Daily consumption of γ-oryzanol-fortified canola oil, compared with unfortified canola and sunflower oils, resulted in a better improvement of certain cardiometabolic biomarkers of adult subjects with type 2 diabetes: a randomized controlled clinical trial

Efficacy of Vitamin D supplementation in physical performance of Iranian elite athletes

Vitamin D, oxidative stress, and diabetes: crossroads for new therapeutic approaches

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