Taurine and Nitrate Supplementation on Thermoregulatory in T2DM

Starting soon · Not applicable · Has a placebo group

Conditions studied: Type 2 Diabetes

In brief

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.

Key facts

Study ID

NCT07656051

Run by

University of Portsmouth

People needed

18

Starts

2026-06-01

Expected to finish

2028-04-01

Last updated by the study team

2026-06-18

Who can join

Age: 35 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Male or female (post-menopausal) aged 35 years or above.
• Diagnosed with T2DM as defined by the WHO (HbA1c ≥48 mmol/mol).
• Willing and able to give informed consent for participation in the study.
• Able to understand and fully cooperate with the study protocol.

You may not qualify if…

• Severe peripheral neuropathy (to the point to which they cannot sense temperature)
• Uncontrolled hypertension (≥180 systolic / 100 diastolic)
• Significant renal impairment (eGFR < 30)
• Diagnosed anhidrosis
• Taking any medication which may interfere with data interpretation or safety
• Who have had a myocardial infarction or cerebrovascular event
• Any cardiac abnormalities which restrict hard exercise
• Any allergies to the ingredients used in the supplements
• BMI >40
• Current smokers or who have stopped within 3 months
• Unable to understand and/or fully cooperate with the study protocol
• Any serious medical condition which would interfere with data interpretation or safety will be excluded from participation.
• Open wounds
• Skin ulcerations (that would interfere with data collection and interpretation or safety)
• Eczema (that would interfere with data collection and interpretation or safety)
• Pre-existing postural hypertension
• Existing cardiac diseases (identified during screening)
• Currently heat acclimated (repeated exposure to hot environments ≥3 sessions in the last 14-21 days)
• Prior heat related illness

Full record on ClinicalTrials.gov

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