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Taurine and Nitrate Supplementation on Thermoregulatory in T2DM
Sponsor: University of Portsmouth
Summary
Anthropogenic warming is increasing the frequency and intensity of extreme heat events. Elevated temperatures raise the risk of mortality and hospital admissions, particularly among people with chronic illnesses such as type 2 diabetes mellitus (T2DM). Globally, around 530 million people live with T2DM , and in the United Kingdom nearly six million are affected, creating a substantial population vulnerable to heat related illness. People with T2DM are at heightened risk of cardiovascular disease, which can impair cardiac output, a key component of thermoregulation, as it supports increased skin blood flow for heat dissipation. T2DM also attenuates eccrine sweat gland function, peripheral vasodilation, reducing evaporative cooling capacity. These physiological constraints highlight the need for effective strategies to improve heat tolerance in this group. Recent evidence shows that exogenous taurine supplementation can enhance sweating in healthy individuals, potentially improving heat loss. This study will examine whether acute taurine supplementation, alone or combined with beetroot, can limit rises in core temperature in people with T2DM during an acute extreme heat exposure.
Official title: The Effect of Taurine and Nitrate Supplementation on Thermoregulatory Responses in People With Type 2 Diabetes Mellitus.
Key Details
Gender
All
Age Range
35 Years - Any
Study Type
INTERVENTIONAL
Enrollment
18
Start Date
2026-06-01
Completion Date
2028-04-01
Last Updated
2026-06-18
Healthy Volunteers
No
Conditions
Interventions
taurine
The taurine supplement will be administered as a 5g (100% taurine powder, myprotein, UK) dose. To taste match the beetroot arm we will use a nitrate depleted powder. The placebo contained 1.6% nitrate (180 mg nitrate; Bio-gen Extracts Private Limited, Karnataka, India). The servings contained 13.33g of nitrate depleted beetroot powder. The remaining 6.67g comprised a sweetener (stevia), flavour (watermelon) and flavouring agents (malic \& citric acid). The beetroot powders were prepared by manipulating the processing control parameters (extraction time and temperature) during extract preparation to ensure precise nitrate concentration across the different conditions, particularly for the placebo. Specifically, raw beetroot was extracted with water for 1 h at \>90°C with the residue obtained from the first extraction processed to obtain the low nitrate grade material. The NO3- content of beetroot powders were determined by treating the samples with a salicylic acid-sulphuric acid mixture,
Beetroot and taurine
20g of formulated beetroot power containing \~6% nitrate (800mg NO3-; TruBeet; Bio-gen Extracts Private Limited). The servings contained 13.33g of the formulated beetroot powder. The remaining 6.67g comprised a sweetener (stevia), flavour (watermelon) and flavouring agents (malic \& citric acid) and 5g (100% taurine powder, myprotein, UK) of taurine will also be added to 305mL water prior to ingestion.
Placebo
Placebo will include the 20g nitrate placebo from above and 5g of maltodextrin (100% Maltodextrin Carbs, myprotein, UK) which will also be added to 305 mL water.