Indolpropionic acid (IPA) is a microbial metabolite derived from the amino acid tryptophan. It is known for its antioxidant properties and plays a protective role in gut barrier integrity and glucose metabolism. Higher levels are generally linked to a balanced gut microbiota and a healthy intestinal environment. Low concentrations may suggest reduced microbial diversity, altered tryptophan metabolism, or increased oxidative stress.

Low IPA levels may indicate reduced microbial diversity, impaired tryptophan metabolism, or increased oxidative stress. This could be linked to weakened gut barrier function, heightened inflammation, or altered glucose regulation.
Testing IPA is beneficial for individuals interested in gut health, antioxidant levels, or metabolic balance. It can offer valuable insights for those experiencing digestive problems, chronic tiredness, insulin resistance, or inflammatory conditions.
IPA production largely depends on the composition of the gut microbiota and the availability of dietary tryptophan. A low-fibre diet, dysbiosis, inflammation, or oxidative stress can diminish IPA formation. Conversely, a diverse and balanced gut flora promotes its synthesis.
Yes. Supporting microbial diversity through a fibre-rich diet, fermented foods, and antioxidant intake can promote healthy IPA production. Reducing inflammation and maintaining balanced tryptophan metabolism also help sustain optimal levels.
