Sweet Proteins Market (2026-2036)

The growth of this market is mainly driven by government and consumer pressure to cut added sugar in food and beverages, the arrival of precision fermentation that makes rare sweet proteins available at commercial scale, a growing number of regulatory approvals for new sweet proteins, and the ability of sweet proteins to improve the taste of stevia and other natural sweeteners. However, factors such as the high production cost of sweet proteins compared with other sweeteners and the long and uneven regulatory approval process across countries are expected to restrain the growth of this market to some extent.

Sweet proteins are naturally occurring proteins, mostly found in the fruits of tropical plants in West and Central Africa and Southeast Asia, that taste hundreds to thousands of times sweeter than sugar by weight. The best-known sweet proteins are thaumatin from the katemfe fruit, brazzein from the oubli fruit, monellin from the serendipity berry, and miraculin from the miracle berry, which does not taste sweet itself but makes sour foods taste sweet. Because they are proteins, they are digested like other dietary proteins, add almost no calories at the levels used, and do not raise blood glucose, which makes them attractive for sugar reduction.

Thaumatin is the only sweet protein that has been sold at meaningful scale for several decades. It is approved as a food additive (E 957) in the EU, is used in Japan, the U.S., and many other countries, and is mostly used at very low levels as a flavor modifier that masks bitterness, rounds out sweetness, and improves the taste of other sweeteners. Givaudan, through its Naturex business and the Talin brand, and U.K.-based Natex are the main suppliers of thaumatin extracted from katemfe fruit, while Conagen and Sweegen produce thaumatin by fermentation. Thaumatin also has a long history in animal feed, pet food, pharmaceuticals, and chewing gum.

The next generation of sweet proteins is being produced by precision fermentation, in which microbes are programmed to make the protein in fermentation tanks. This removes the dependence on wild-harvested tropical fruit, which has kept supply small and prices high. Oobli produces brazzein and monellin by fermentation and holds FDA "no questions" letters for both, Sweegen received an FDA GRAS "no questions" letter for its Ultratia Brazzein in June 2026, and Amai Proteins has developed sweelin, an engineered version of monellin designed to stay stable during heating and processing. These products are positioned as true sweeteners that can replace a large part of the sugar in a recipe rather than only as flavor modifiers.

Regulatory approvals are opening new markets for these proteins, though the pace differs by country. Amai Proteins received approvals for sweelin in the U.S., Singapore, and Israel within about seven months in 2026, and Russia's EFKO certified its fermentation-produced brazzein in the Eurasian Economic Union and the U.A.E. In the EU, new sweet proteins still require novel food or food additive authorization, which takes several years, so European activity is focused on building production capacity and preparing dossiers. Pentasweet's brazzein plant in Lithuania and the Fraunhofer IME BeyondSugar project, which works with Symrise and other partners on a brazzein-based sweetener, show how Europe is preparing for future approval.

Large ingredient companies are entering the market mainly through partnerships, as Ingredion partnered with Oobli and invested in the company in February 2025 to develop blends of stevia and sweet proteins, Ajinomoto Health & Nutrition partnered with AI protein discovery company Shiru in 2024 to find and develop new sweet proteins, and Oobli and Cosun are offering a sugar replacement system for chocolate to selected brands. These partnerships give sweet protein developers access to the customer networks and application expertise of large suppliers, which is critical for a new ingredient that food companies must test in many recipes before launch.

Despite strong interest, the market is still small and at an early stage of commercialization. Production costs for fermented sweet proteins remain high, food companies are still learning how to use these ingredients, and most new products launched so far are in premium and niche categories such as chocolate, functional beverages, and supplements. Growth over the forecast period will depend on how quickly fermentation capacity grows, how fast prices fall, and how many countries approve the new proteins for general food use. Suppliers that can offer a broad portfolio of approved proteins, application support, and reliable supply at falling prices are expected to shape how quickly the market moves from niche launches to mainstream products.

We have used thaumatin for years and trust its safety record. The new fermented proteins look promising, but we need local approval and a stable supply at a sensible price before we can put them into our main products.

Regulatory approval and supply cost are the main conditions for wider adoption in Asia-Pacific, which is the fastest-growing region at a CAGR of 19.5% as approvals expand and capacity grows. Established thaumatin users in the region provide a base for new proteins.

Precision fermentation is projected to register the highest CAGR, while plant extraction holds the largest share in 2026.

North America is expected to account for the largest share of 37.5% of the market in 2026.

Asia-Pacific is projected to register the highest CAGR of 19.5% during the forecast period, led by Japan, China, South Korea, and Singapore.

The report profiles 10 companies, including Givaudan SA (Naturex), Natex, Sweegen, Inc., Conagen, Inc., Oobli, Inc., Amai Proteins Ltd., and Ingredion Incorporated. The top five players account for an estimated 71.4% of the market in 2025.

Precision fermentation allows companies to produce sweet proteins such as brazzein, monellin, and thaumatin in fermentation tanks instead of extracting them from rare tropical fruits. This provides reliable, scalable supply with consistent quality, enables engineered proteins with better stability and taste, and is expected to lower costs as new plants such as Pentasweet's facility in Lithuania start production.

In terms of volume, the market is expected to grow from an estimated 78.8 tons in 2026 to 538.7 tons by 2036, at a CAGR of 21.2%. Volume grows faster than value because average selling prices are expected to fall as fermentation capacity increases.