Serum β-carotene and α-carotene have been found to be associated with protection from diabetes mellitus and diabetes retinopathy respectively, according to a new cross-sectional study published in Current Molecular Medicine. The study, conducted on 747 subjects in a Chinese urban population (Beijing, China), investigated the relationship between serum carotenoid concentrations and the risk for diabetes mellitus and diabetes retinopathy. It’s joint research between the popular Beijing Tongren Hospital and Sun Yat-sen University, Guangzhou.

In this study, 272 diabetic retinopathy patients, 190 diabetic patients without retinopathy and 285 non-diabetes mellitus healthy patients (control) were assessed for their history of diabetes, lifestyle information as well as health status information. They also underwent ocular and anthropometric examinations and laboratory tests. Fasting blood samples were collected from all participants to check for carotenoid levels using high-performance liquid chromatography.

The levels of β-carotene were statistically significantly lower in patients suffering from diabetes mellitus. Meanwhile, lower concentrations of α-carotene were displayed in the diabetic retinopathy non-smoker group, which is also backed up with statistical significance. The levels of β-cryptoxanthin and lycopene were also lower in diabetes mellitus and diabetes retinopathy groups respectively, however both are not statistically significant. This study demonstrates the protective effects of β-carotene on diabetes mellitus and α-carotenes on diabetes retinopathy which are inferred to arise from their antioxidant properties.

Prior to above findings, this group of researchers revealed that a diet rich in carotenoids could contribute to the prevention of type 2 diabetes, provided a non-smoking healthy lifestyle is also observed.

“Micronutrient deficiency and malnutrition have become significant issues recently. These are mainly due to lifestyle changes, lack of exercise and an imbalanced diet. This could contribute to the increased incidence of diabetes worldwide. Hence, supplementation of natural carotenes may play an important role providing sufficient carotene intake which could help promote healthy metabolite function. EVTene™, a natural, non-GMO, mixed-carotene complex, contains significant amounts of α-carotene and β-carotene. It’s the perfect and most natural carotene for your formula,” said ExcelVite Nutritionist Diyanah Roslan.

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ExcelVite Business Development Manager Bryan See added, “One in every 11 adults is now suffering from diabetes, according to the International Diabetes Federation. That figure is 10 million more than the number in 2015. An urgent action has to be taken to control this alarming increase of diabetic patients. Back in 2016, a cohort study was published in British Medical Journal’s Open Diabetes Research and Care that demonstrated that a long-term high consumption of carotenoids, especially pro-vitamin A carotenoids, could reduce the risk of type 2 diabetes in middle-aged and older Japanese patients. We welcome this research which further supports the protective effect of α-carotene and β-carotene on diabetes mellitus and diabetes retinopathy respectively.”

She, C., Shang, F., Zhou, K., & Liu, N. (2017). Serum carotenoids and risks of diabetes and diabetic retinopathy in a Chinese population sample. Current Molecular Medicine.

Disclaimer: The statements in the above article have not been evaluated by the Food and Drug Administration. They are not intended to diagnose, treat, cure or prevent any disease.


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