Severe Consequences of Elevated Blood Sugar in COVID-19 Patients

Overview

As the COVID-19 pandemic continues, researchers are working to better understand the virus and why its impact varies among individuals. Recent studies have highlighted the heightened risk of complications in people with obesity, diabetes, and high blood pressure. A study published in the Journal of the American Medical Association confirmed the increased susceptibility to severe outcomes among COVID-19 patients with pre-existing health conditions.

Impact of Diabetes on COVID-19

Research focused on hospitalized COVID-19 patients with diabetes showed that two-thirds of them were men with an average age of 70. The study revealed that patients with diabetic complications and older age faced worse outcomes. Elevated body mass index was also linked to a higher risk of severe complications and death.

Effects of High Fasting Blood Sugar on COVID-19

Another study involving COVID-19 patients without diabetes but with high fasting blood sugar levels found an increased risk of death and severe complications. Hyperglycemia is believed to contribute to poor outcomes by affecting blood clotting and triggering inflammatory responses. It is recommended that COVID-19 patients monitor their blood sugar levels and take necessary measures to control them for better treatment outcomes.

Managing Blood Sugar Levels

Regular blood sugar monitoring and maintaining healthy levels through lifestyle changes can improve survival chances during COVID-19 and prevent chronic diseases. Adopting a healthy lifestyle with exercise, balanced diet, and controlled sugar intake can help manage blood sugar levels effectively. This proactive approach not only protects against COVID-19 but also reduces the risk of developing diabetes, heart disease, obesity, and cancer, promoting overall well-being.

Journal of the American Medical Association, 2020;323(20):2052-2059. doi:10.1001/jama.2020.6775
https://medicalxpress.com/news/2020-05-covid-patients-diabetes-die-days.html
Diabetologia, 2020; DOI: 10.1007/s00125-020-05209-1

References

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Zhang R, Zhang M, Wang P. The intricate interplay between dietary habits and cognitive function: insights from the gut-brain axis. Front Nutr. 2025 Jan 29;12:1539355. doi: 10.3389/fnut.2025.1539355. PMID: 39944956; PMCID: PMC11813792.

"Food for the Brain" initiative by the Food for the Brain Foundation, a UK-based charity dedicated to raising awareness about the impact of nutrition and lifestyle on mental well-being and cognitive health.

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Susan Parker

Susan Parker is a 49-year-old Senior Manager at a marketing firm. With two older children becoming more independent, she is now focusing on her own health and wellbeing. She’s passionate about natural and holistic health approaches, and values high-quality, trustworthy products. Susan enjoys yoga, gardening, reading, and cooking, and seeks to stay energetic and sharp while balancing a busy career and personal life.