Taurine and Long COVID: Could One Simple Nutrient Help?
Dr. Nayiar Shahid - 7 April 2026
The benefits of taurine supplementation, from Dr. Oudit's paper.
Many people recover from COVID-19 within weeks. But for some, symptoms don’t go away. Months later, they may still feel exhausted, short of breath, or struggle with brain fog. This condition is known as post-acute sequelae of COVID-19 but it has been commonly called long COVID. The symptoms are different for each person but can include such issues as fatigue, respiratory dysfunction, gut issues, brain fog, and cardiovascular abnormalities including postural orthostatic tachycardia syndrome, or POTS, has been documented.
Most of the symptoms associated with long COVID appear to align with another known issue in human health, inflammaging. As the name implies, the body experiences inflammation that makes it more vulnerable to a variety of health issues. Inflammaging is partially caused by what is known as the inflammasome pathway. The body senses stress in the cells and directs the immune system to send out a variety of chemicals called cytokines that signal the body that it’s unwell.
Because of the link between inflammaging and long COVID, Dr. Gavin Oudit and colleagues decided to explore the potential use of an inflammaging treatment as a possible option to treat long COVID. Their exploration has now been published in BMC Infectious Diseases.
Taurine is known as a beta-amino acid, which means that it does not help to form proteins, but instead acts to regulate various pathways in the body, including inflammaging. There are several ways this is accomplished but they all serve one purpose - to tell the body that the cells are not stressed and do not need the assistance of the inflammasome.
The team screened thousands of studies and identified 27 clinical trials that utilized taurine in the treatment of more than 1,000 participants. These studies did not all involve long COVID patients directly, but they examined how taurine affects processes that are often disrupted in long COVID, such as metabolism, inflammation, and blood vessel function. The goal was to identify any reductions in the harmful symptoms associated with long or acute COVID-19 or other inflammation-related disorders.
The results were promising. People who took taurine showed improvements in several areas, including lower blood sugar as well as reduced cholesterol and triglycerides. Some studies also found lower blood pressure and improved exercise capacity. For these benefits, the researchers suggested that a daily dose of about 3,000 mg of taurine may be provided with no safety concerns. .
They also examined studies measuring taurine levels after COVID-19 infection. Interestingly, individuals with long COVID symptoms tended to have lower taurine levels than those who recovered fully. This does not prove that taurine prevents or treats long COVID, but it suggests a possible link worth exploring.
As most of the data did not come from people specifically diagnosed with long COVID, taurine cannot yet be considered a proven treatment for the condition. Thankfully, that’s exactly what Dr. Oudit in collaboration with Dr. Angela Cheung and Dr. Lawrence Richer is doing. The trio of researchers are putting taurine to the test in a 300-person clinical trial. They will look at a variety of different aspects of health from blood to microbiome and hope to find not only benefits from supplementation but also who might benefit the most. If they are correct, this research could change the game for Long COVID and possibly other chronic illnesses that demonstrate similar symptoms like chronic fatigue.