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The effects of Chlorella supplementation on glycemic control, lipid profile and anthropometric measures on patients with type 2 diabetes mellitus.

Authors:
Amir Mehdi Hosseini Seyed Ali Keshavarz Ensieh Nasli-Esfahani Fatemehsadat Amiri Leila Janani

Eur J Nutr 2021 Feb 2. Epub 2021 Feb 2.

Department of Biostatistics, School of Public Health, Iran University of Medical Sciences, Tehran, Iran.

Background: Diabetes is a chronic disease and the prevalence of it is rapidly increasing. Recently, the use of natural products in chronic diseases such as diabetes has gained more attention. Chlorella, a single-celled green alga, is one of them. There have been some studies on the effects of chlorella supplementation in chronic diseases such as NAFLD, prediabetes, and diabetic mice, but none of them examined the effects of chlorella in patients with T2DM. The present study was designed to evaluate the effects of chlorella supplementation on glycemic control, lipid profile, and anthropometric indices in type 2 diabetic patients.

Methods: This study is a double-blind, randomized controlled trial. 84 patients with T2DM assigned into two groups, receiving 1500 mg/day C. vulgaris or placebo for 8 weeks. Anthropometric information, blood pressure, 24-h food intake recall, and blood samples were collected at the beginning and end of the study to determine the changes of FBS, HbA1c, insulin concentration, insulin resistance, and lipid profile.

Results: None of the variables investigated in this study showed a significant change after 8 weeks of intervention with C. vulgaris.

Conclusion: According to the findings of this study, supplementation with C. vulgaris with a dosage of 1500 mg/day for 8 weeks, does not improve the anthropometric measurements, glycemic status, and lipid profile as well. Thus, it cannot be considered as a complementary therapeutic approach to common medications at this dosage and duration. However, future studies with a higher dosage of C. vulgaris and more prolonged than 8 weeks are needed to be done.

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http://dx.doi.org/10.1007/s00394-021-02492-5DOI Listing
February 2021

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