Next-gen Fermentation
Fermenta to launch Solein-powered protein bars in the US in 2026

Rafaela Sousa
13 November 2025
13 November 2025
Fermenta to launch Solein-powered protein bars in the US in 2026

Fermenta, a health and performance nutrition start-up, is set to introduce protein bars made with Solein in the US market, with consumer availability planned for Q1 2026.
The launch will make the products among the first Solein-based offerings available to US consumers.
According to Solar Foods, the developer of Solein, the protein ingredient offers a full essential amino acid profile, contains iron, vitamin B12 and 10% fibre and has no cholesterol or saturated fat.
Solein is produced through gas fermentation, which the company says enables a scalable production model with a significantly lower environmental impact than conventional protein sources such as soy, pea or whey.
Fermenta will release the products under its Gutsy brand, targeting demand for functional, gut-health-focused nutrition.
The bars will be gluten-free, animal-free and positioned as high-protein, vegan-friendly options with reduced sugar. A limited early batch is expected in early 2026.
Fermenta CEO John Gibb said the company aims to combine nutritional benefits with sustainability: “Solein is a groundbreaking new ingredient which supports our sustainability ambition and offers exceptional nutritional values with no compromise on taste”.
Solar Foods said Fermenta is among the first US partners to bring a commercial product to market using the ingredient. “Fermenta’s functional protein bars are one example of how Solein works in final products,” said Troels Nørgaard, chief commercial and product officer at Solar Foods.
Solar Foods has begun commercialising Solein in the US, initially focusing on the health and performance nutrition sector.
The company said it has signed multiple supply agreements and is working with customers to support product development. Solein-enabled foods have previously reached consumers in Singapore.
Related news
Ajinomoto debuts Solein-based dairy-free coffee in Singapore
Japanese food manufacturer Ajinomoto has expanded its Solein-powered product line with the launch of a new ready-to-drink coffee under its sustainable brand Atlr.72.
Solar Foods develops Solein-based mayonnaise as alternative to egg yolk
Solar Foods has unveiled a new application for its microbial protein Solein, using it as a replacement for egg yolk in mayonnaise production.
Solar Foods submits FDA GRAS notification for Solein protein ingredient
Solar Foods has filed a GRAS notification with the US Food and Drug Administration for its microbial protein ingredient, Solein, as it seeks to secure a “no questions” letter confirming the product’s safety.
Next-gen Fermentation
Fermenta to launch Solein-powered protein bars in the US in 2026

Rafaela Sousa
13 November 2025



