# Functional Food Market

> Functional Food Market: USD 268.74 billion in 2025, growing 5.97% a year to 2035 as high-protein and gut-health foods win daily shoppers.

Publisher: Douglas Insights  
Author: Douglas Insights Research Desk  
Report code: DI-FB-10660  
Published: 2026-10-08  
Last updated: 2026-10-08  
Next review: Apr 2027  
Page: https://www.douglasinsights.com/functional-food-market/

## Key figures

| Measure | Value | How it is built |
| --- | --- | --- |
| Market size · 2025 | $268.74 Bn | 418.6 billion servings times USD 0.642 per serving = USD 268.74 billion. |
| Forecast · 2035 | $479.86 Bn | Base case: 4.3% servings growth and 1.6% price growth a year. |
| Revenue CAGR · 2026-2035 | 5.97% | Multiplicative volume and price legs. |
| Volume · 2035 | 637.7 billion servings | 418.6 billion servings grown 4.3% a year. |
| Leading segment | Probiotic and fermented dairy, 27.4% | USD 73.6 billion in 2025. |
| Fastest segment | Protein-enriched snacks and bars, 8.6% | Protein moves from powders to snacks. |
| Fastest region | Asia Pacific, 6.85% | USD 104.0 billion in 2025 to USD 201.7 billion in 2035. |
| Market leader | Danone, about 4.5% share | Douglas Insights estimate from EDP sales of EUR 13.16 billion. |
| Event | FDA healthy rule, 27 December 2024 | Effective 28 April 2025; compliance 25 February 2028. |

## Key takeaways

- Functional food is worth USD 268.74 billion in 2025 and reaches USD 479.86 billion by 2035, a 5.97% revenue CAGR.
- Servings grow 4.3% a year, from 418.6 billion to about 637.7 billion, while price per serving rises 1.6%.
- Probiotic and fermented dairy leads with 27.4%, but protein-enriched snacks and bars grow fastest at 8.6%.
- Asia Pacific holds 38.7% of revenue and grows 6.85% a year; Europe grows slowest at 4.76% under authorised-claim rules.
- Douglas Insights estimates the top three suppliers hold about 7.5%, with Danone near 4.5%.

Japanese brands notified 1,176 new Foods with Function Claims in fiscal 2025 and withdrew more than 1,923 older ones, the first year exits beat entries, yet shelves kept selling. Functional food is packaged food and drink sold with a stated health benefit beyond basic nutrition, such as gut, heart, muscle or blood-sugar support. The Functional Food Market covers probiotic dairy, functional beverages, fortified cereals, adult nutrition drinks, protein bars and fortified child foods. Douglas Insights sizes it at USD 268.74 billion in 2025: 418.6 billion servings times an average USD 0.642 per serving. Our base case reaches USD 479.86 billion by 2035, a 5.97% revenue CAGR. The rule that resets American labels is the US Food and Drug Administration ([FDA](https://www.fda.gov/)) final rule redefining "healthy", published on 27 December 2024 ([Federal Register, document 2024-29957](https://www.federalregister.gov/documents/2024/12/27/2024-29957/food-labeling-nutrient-content-claims-definition-of-term-healthy)). The study belongs to our [packaged foods](https://www.douglasinsights.com/industry/food-beverages/packaged-foods/) practice and follows the Douglas Insights [research methodology](https://www.douglasinsights.com/research-methodology/).

## Which functional food product leads revenue: probiotic dairy or functional beverages?

Probiotic and fermented dairy leads functional food with 27.4% of 2025 revenue, worth USD 73.6 billion, because cultured yogurts and shots are bought daily. Functional beverages follow at 22.1%, and protein-enriched snacks and bars grow fastest at 8.6% a year as gym and weight-management buyers switch from powders to bars.

| Product segment | Share of 2025 revenue | 2025 value | Growth 2026-2035 | 2035 value |
| --- | --- | --- | --- | --- |
| Probiotic and fermented dairy | 27.4% | USD 73.6 billion | 5.3% | USD 123.4 billion |
| Functional beverages | 22.1% | USD 59.4 billion | 7.2% | USD 119.0 billion |
| Fortified cereals and bakery | 19.6% | USD 52.7 billion | 3.9% | USD 77.2 billion |
| Adult and medical nutrition drinks | 14.8% | USD 39.8 billion | 6.6% | USD 75.4 billion |
| Protein-enriched snacks and bars | 10.3% | USD 27.7 billion | 8.6% | USD 63.2 billion |
| Fortified infant and child foods | 5.8% | USD 15.6 billion | 3.2% | USD 21.4 billion |

Probiotic and fermented dairy holds USD 73.6 billion because a 65-millilitre cultured drink or a cup of bio yogurt is a habit, not a treat. Functional beverages, at USD 59.4 billion, carry vitamins, fibre and electrolytes into ready-to-drink bottles and win impulse sales. Fortified cereals and bakery account for USD 52.7 billion; their 3.9% growth is the slowest of the adult categories because breakfast cereal volumes are mature in Europe and North America. Adult and medical nutrition drinks are worth USD 39.8 billion, driven by older shoppers and patients who drink Ensure-type products every day. Protein-enriched snacks and bars total USD 27.7 billion and expand fastest, at 8.6%, as protein moves from the tub to the snack aisle. Fortified infant and child foods hold USD 15.6 billion and grow 3.2%, held back by falling births in East Asia and Europe.

By 2035 functional beverages nearly match probiotic dairy, at USD 119.0 billion against USD 123.4 billion. That convergence is the main shift inside the functional food mix.

## Why are gut-health and high-protein functional foods winning new shoppers?

Four forces add 4.3 points a year to functional food servings: protein and gut-health habits, ageing adults, Asian urban diets and relabelling under new claim rules. Together they lift servings from 418.6 billion in 2025 to about 637.7 billion in 2035, before any price change.

High-protein and gut-health habits contribute 1.6 points. Danone reported 2025 like-for-like sales growth of 4.5%, with volume and mix up 2.7%, and said its high-protein yogurt lines grew at double digits in Europe and North America ([Danone full-year 2025 results](https://www.danone.com/content/dam/corp/global/danonecom/investors/en-all-publications/2026/pressreleases/danonepr200226.pdf.coredownload.pdf)). Its Essential Dairy and Plant-Based division booked EUR 13.16 billion, up 3.5% like for like, and in Japan growth was led by the functional brands Activia and Oikos. A cup of high-protein yogurt now does the job a shake did ten years ago, and that substitution drives our 8.6% rate for protein-enriched snacks and bars.

Ageing adults contribute 1.2 points. Abbott sold USD 4.48 billion of adult nutritionals in 2025, more than its USD 3.97 billion of pediatric nutritionals, across Ensure, Glucerna and PediaSure ([Abbott 2025 annual report, SEC filing](https://www.sec.gov/Archives/edgar/data/1800/000130817926000066/abt014387_arsa.pdf)). When a pediatric-first nutrition group earns 53% of its segment from adults, the demand curve has turned grey. Douglas Insights expects adult and medical nutrition drinks to compound at 6.6% a year to USD 75.4 billion in 2035.

Asian urban diets contribute 0.9 points. Yakult sold a daily average of 38,241 thousand bottles worldwide in its year to March 2025, of which 19,694 thousand came from overseas subsidiaries and 9,680 thousand from Japan ([Yakult executive summary, March 2025](https://www.yakult.co.jp/english/ir/management/pdf/Executive_Summary_March_31.2025.pdf)). Overseas bottles already outnumber Japanese ones two to one. Habit travels. That 38.24 million a day equals roughly 13.96 billion servings a year, or 3.3% of all functional food servings in our model.

Relabelling under new claim rules contributes the last 0.6 points. The FDA rule of 27 December 2024 caps added sugars at 10% of the Daily Value for grain products and asks for food-group equivalents such as two-thirds of a cup of dairy ([FDA final rule on "healthy"](https://www.federalregister.gov/documents/2024/12/27/2024-29957/food-labeling-nutrient-content-claims-definition-of-term-healthy)). Its effective date moved to 28 April 2025 and compliance falls on 25 February 2028, so reformulated cereals, yogurts and bars reach shelves through 2027. Douglas Insights counts that relabelling wave as 0.6 points of volume a year, mostly in North America. Labels sell. A cereal that can print "healthy" again wins back a shelf facing it lost a decade ago.

## What slows functional food sales when health-claim withdrawals and price fatigue bite?

Three brakes remove 0.9 points from functional food volume growth: claim withdrawals, price fatigue and sugar reformulation. Without them servings would grow 5.2% a year rather than 4.3%, and the 2035 value would sit about USD 43 billion higher than our base case of USD 479.86 billion.

Claim withdrawals remove 0.4 points. In Japan more than 1,923 Foods with Function Claims notifications were withdrawn in fiscal 2025 against 1,176 new ones, after tighter manufacturing and adverse-event reporting duties arrived in 2024. Every withdrawn claim is a label that can no longer promise lower body fat or better sleep, and those products lose their premium.

Price fatigue removes 0.3 points. A functional serving sells at USD 0.642 on average, often double a plain equivalent, and Nestlé Health Science grew only 3.2% organically in 2025 with pricing at minus 0.3%. When a category leader cuts price, shoppers have been trading down. Premiums have limits.

Sugar reformulation removes 0.2 points. Grain products must hold added sugars at 10% of the Daily Value or less to say "healthy" in the United States, and some fortified cereals will drop the word rather than reformulate. Fortified cereals and bakery carry most of that drag, which is why their 3.9% growth trails the 5.97% total.

## How much does a functional food serving cost shoppers, from yogurt shots to protein bars?

A functional food serving realised USD 0.642 on average in 2025, and Douglas Insights models it rising 1.6% a year to about USD 0.752 by 2035. Bands run from about USD 0.25 for a fortified cereal bowl to USD 2.10 for a medical nutrition drink, so mix shapes the average.

Douglas Insights models realised bands by product. Fortified cereals and bakery sell at USD 0.25 to USD 0.45 a serving. Probiotic and fermented dairy sits at USD 0.40 to USD 0.95, with single-strain shots at the low end and high-protein cups at the top. Functional beverages range from USD 0.70 to USD 1.60 a bottle. Protein-enriched snacks and bars sell at USD 1.10 to USD 2.40 per bar. Adult and medical nutrition drinks fetch USD 1.30 to USD 2.10 per 200-millilitre to 237-millilitre serving.

The price leg is modest. On purpose. Danone's 2025 price contribution was 1.8%, and Nestlé Health Science priced at minus 0.3%, so our 1.6% leg sits between the two. Protein bars lift the mix, while private-label probiotic yogurt holds it down.

## Which companies control the probiotic drink and adult nutrition shelf?

Douglas Insights estimates Danone leads functional food with about a 4.5% share, and the top three hold about 7.5%, a fragmented shelf. Shares come from disclosed segment sales, with only the functional portion of each counted.

| Company | Functional food position | Disclosed basis |
| --- | --- | --- |
| Danone | Activia, Oikos and high-protein yogurt | EDP sales EUR 13.16 billion in 2025 |
| Abbott | Ensure, Glucerna, PediaSure | Adult nutritionals USD 4.48 billion in 2025 |
| Nestle Health Science | Medical and active nutrition | CHF 6.55 billion in 2025 |
| Yakult Honsha | Probiotic fermented milk drinks | 38,241 thousand bottles a day |
| Morinaga Milk | Bifidobacteria and BB536 cultures | Net sales JPY 561.2 billion, year to March 2025 |
| Kirin Holdings | Health science platform | Jamieson deal about CAD 1.90 billion |

Danone's position rests on daily cultured dairy: its Essential Dairy and Plant-Based division booked EUR 13.16 billion in 2025. Douglas Insights counts about 82% of that as functional and converts it at USD 1.12 per euro, which gives the 4.5% share. Abbott's position rests on clinical credibility; its USD 4.48 billion of adult nutritionals equals about 1.7% of the market. Nestlé Health Science sold CHF 6.55 billion in 2025, growing 3.2% organically, from medical nutrition and active nutrition, and holds roughly 1.3% once supplements are excluded.

Yakult's position rests on one daily fermented milk drink sold at scale; its 13.96 billion bottles a year make it the volume leader in probiotic and fermented dairy. Morinaga Milk launched Morinaga Bifidus Yogurt in 1978, sells BB536 cultures to other brands and has set a goal of raising bacteria sales volume by 70%. Kirin Holdings agreed on 7 August 2026 to buy Jamieson Wellness for about CAD 1.90 billion, or CAD 45.75 a share, adding North America to a health science platform built on Blackmores and FANCL ([Kirin announcement](https://www.kirinholdings.com/en/newsroom/release/2026/0807_05.pdf)).

## Which region buys the most functional food, and which grows fastest?

Asia Pacific leads functional food with USD 104.0 billion in 2025, 38.7% of the total, because probiotic drinks and claim-labelled foods are routine purchases in Japan, China and Korea. Asia Pacific also grows fastest, at 6.85% a year, reaching USD 201.7 billion in 2035.

North America holds USD 75.0 billion, 27.9% of revenue, and grows 5.55% to USD 128.7 billion as the healthy-label rule pushes reformulation. Europe follows with USD 60.7 billion and the slowest growth, 4.76%, because claims under Regulation (EC) No 1924/2006 must be authorised before use. Latin America is worth USD 18.5 billion and grows 6.35% to USD 34.3 billion on fortified dairy and drinks in Brazil and Mexico. The Middle East and Africa is the wildcard: USD 10.5 billion today, rising 5.80% to USD 18.4 billion, with Gulf protein snacking able to beat that rate.

Asia Pacific's lead rests on habit as much as income. Yakult's overseas subsidiaries sold 19,694 thousand bottles a day, more than double its Japanese volume, and most of that sits in Asia.

## Which ingredient earns a functional food its premium: probiotics, protein or plant sterols?

Probiotics and protein together sit behind about 46% of functional food revenue in 2025, by Douglas Insights' ingredient mapping, because both carry claims shoppers understand. Dietary fibre, omega-3, plant sterols, and vitamins and minerals carry the rest, often as second ingredients in one product.

Probiotics anchor the USD 73.6 billion dairy segment and a slice of functional beverages. Protein drives the USD 27.7 billion bar segment and most high-protein yogurt. Dietary fibre is the most common claim in fortified cereals and bakery. Omega-3 shows up in spreads, eggs and child foods. Plant sterols remain a cholesterol niche, mostly in Europe. Vitamins and minerals appear in almost every category and rarely earn a premium alone.

Claims set prices. The premium follows the strength of the claim. A probiotic shot with a named strain sells near USD 0.95; a vitamin-fortified bowl of cereal near USD 0.25.

## Which channel moves most functional food: supermarkets and hypermarkets or online retail?

Supermarkets and hypermarkets move about 58% of functional food value in 2025, by Douglas Insights' channel model, because yogurt, cereal and chilled drinks need cold-chain shelves. Convenience stores take about 17%, pharmacies about 11% and online retail about 9%, with the rest in direct and foodservice sales.

Online retail grows fastest, at about 11% a year, carried by protein bar subscriptions and adult nutrition multipacks. Pharmacies matter most for adult and medical nutrition drinks, where a clinician's advice starts the habit. Convenience stores in Japan and Korea are the main outlet for single-serve probiotic and functional beverages.

## Which health-claim rules decide what a functional food label says?

Three claim regimes govern about 68% of functional food revenue: the FDA "healthy" rule, the European Union health-claims regulation and Japan's Foods with Function Claims. Each sets what a label promises, and each changed products sold in 2025.

In the United States the FDA rule published on 27 December 2024 took effect on 28 April 2025, with compliance on 25 February 2028 ([FDA rule text](https://www.federalregister.gov/documents/2024/12/27/2024-29957/food-labeling-nutrient-content-claims-definition-of-term-healthy)). It ties "healthy" to food-group content and limits on added sugars, sodium and saturated fat.

In the European Union, Regulation (EC) No 1924/2006 on nutrition and health claims was adopted on 20 December 2006 and entered into force on 19 January 2007 ([EUR-Lex](https://eur-lex.europa.eu/eli/reg/2006/1924/oj)). Only authorised claims may appear, so a European functional food brand competes on approved wording rather than new science.

Japan's Foods with Function Claims system, opened in 2015, lets a company notify the Consumer Affairs Agency of its evidence rather than seek approval. Since 2024 notifiers must meet good manufacturing practice (GMP) and report adverse events, and new filings fell 26% in fiscal 2025.

## What did Japan's Foods with Function Claims reset teach functional food brands?

Japan's functional food reset cut new claim notifications from 1,584 in fiscal 2024 to 1,176 in fiscal 2025, a 26% drop, while withdrawals passed 1,923. The lesson: tighter rules shrink the label count faster than they shrink spending.

Gamma-aminobutyric acid (GABA) stayed the top single ingredient, though its share of single-ingredient filings fell from 18% to 10%. Fat reduction, fatigue and intestinal regulation remained the most common claims. Douglas Insights reads the reset as consolidation: fewer, better-documented products, sold by firms that can afford systematic reviews under the PRISMA 2020 reporting standard.

## What if gut-health volumes stall: how far does the 2035 functional food value move?

The 2035 functional food value spans USD 410.89 billion in a slower case to USD 554.30 billion in a faster one, around a base of USD 479.86 billion. Volume decides most of the gap, because the price leg moves by only 0.4 points between cases.

The base case pairs 4.3% servings growth with a 1.6% price leg, for a 5.97% revenue CAGR. The slower case uses 3.1% volume and 1.2% price, or 4.34% a year, if more Japanese claims lapse and the FDA healthy label wins few converts by 2028. The faster case uses 5.4% volume and 2.0% price, or 7.51% a year, if high-protein dairy keeps its double-digit pace and Kirin-style platform deals spread functional brands into North America.

Volume sensitivity is steep. A volume path one point faster lifts 2035 to USD 527.90 billion; one point slower leaves USD 435.79 billion. Published forecasts run from about 6.5% to 9.2% a year. Our 5.97% sits below them because we exclude capsules and powders that are supplements, not food.

## Douglas Exclusive: the Functional Food Health-Claim Register

The Functional Food Health-Claim Register is a Douglas Insights model built from 14 sourced inputs: three claim regulations, six company filings and five Japanese notification counts. It is not an official register. It assigns each product segment to the claim regime that governs most of its sales and scores how hard that regime is to use.

| Claim regime | Key date | Functional food revenue governed, 2025 | Friction score (1 to 5) |
| --- | --- | --- | --- |
| FDA healthy rule | 28 April 2025 effective | USD 75.0 billion | 3 |
| EU Regulation 1924/2006 | 19 January 2007 in force | USD 60.7 billion | 5 |
| Japan Foods with Function Claims | 2015 opened, tightened 2024 | USD 47.1 billion | 4 |
| Other national regimes | Various | USD 85.9 billion | 2 |

The register finds that the hardest regime, the European one, governs the slowest region, growing 4.76%, while the lightest regimes cover the fastest growers. Douglas Insights puts about USD 182.8 billion, or 68%, of 2025 revenue under the three named regimes. Japan's share is our estimate of claim-labelled and probiotic sales inside Asia Pacific's USD 104.0 billion.

## What methodology turns 418.6 billion servings into the functional food total?

Douglas Insights multiplies 418.6 billion functional food servings by USD 0.642 to reach USD 268.74 billion for 2025, then grows servings 4.3% and price 1.6% a year. The model covers 5 regions, 6 product segments and 31 countries, and draws on 14 sourced inputs.

Cross-check one: Yakult's 13.96 billion bottles a year are 3.3% of modelled servings, a plausible volume share for the largest single probiotic drink brand. Cross-check two: Abbott's USD 4.48 billion of adult nutritionals is 11.3% of our USD 39.8 billion adult and medical nutrition segment. Cross-check three: four published forecasts give 6.5%, 6.7%, 8.8% and 9.2% a year; our 5.97% is 0.53 points below the lowest because of the supplement exclusion. Regional rows add to USD 268.74 billion in 2025 and USD 479.86 billion in 2035 exactly. Segment values in 2035 add to USD 479.6 billion, within 0.1% of the total.

Related coverage: the [Probiotic Culture Market](https://www.douglasinsights.com/probiotic-culture-market/) sizes the strains inside cultured dairy, the [Nutraceutical Products Market](https://www.douglasinsights.com/nutraceutical-products-market/) covers capsules and powders we exclude, and the [Plant Based Supplement Market](https://www.douglasinsights.com/plant-based-supplement-market/) tracks botanical formats.

## Market by segment

| Segment | Share | Value |
| --- | --- | --- |
| Probiotic and fermented dairy | 27.4% | $73.6 Bn |
| Functional beverages | 22.1% | $59.4 Bn |
| Fortified cereals and bakery | 19.6% | $52.7 Bn |
| Adult and medical nutrition drinks | 14.8% | $39.8 Bn |
| Protein-enriched snacks and bars | 10.3% | $27.7 Bn |
| Fortified infant and child foods | 5.8% | $15.6 Bn |

## Market by region (USD million)

| Region | 2025 | 2026 | 2035 | CAGR 2026-2035 |
| --- | --- | --- | --- | --- |
| Global | 268,741.2 | 284,785 | 479,859.9 | 5.97% |
| Asia Pacific | 104,002.8 | 111,127 | 201,739.2 | 6.85% |
| North America | 74,978.8 | 79,140.1 | 128,682.9 | 5.55% |
| Europe | 60,735.5 | 63,626.5 | 96,693.6 | 4.76% |
| Latin America | 18,543.1 | 19,720.6 | 34,320.8 | 6.35% |
| Middle East and Africa | 10,481 | 11,088.9 | 18,423.4 | 5.8% |

## Dataset

| Series | Value | Unit |
| --- | --- | --- |
| Market size 2025 | 268,741.2 | USD million |
| Market size 2035 | 479,859.9 | USD million |
| Revenue CAGR 2026-2035 | 5.97 | percent |
| Volume CAGR 2026-2035 | 4.3 | percent |
| Price per serving CAGR 2026-2035 | 1.6 | percent |

## Frequently asked questions

### What is a functional food serving worth on average?

USD 0.642 per serving in 2025, rising about 1.6% a year to roughly USD 0.752 by 2035; bands run from USD 0.25 for fortified cereal to USD 2.10 for medical nutrition drinks.

### How large is functional food spending in 2025 and 2035?

USD 268.74 billion in 2025, built from 418.6 billion servings at USD 0.642, rising to USD 479.86 billion by 2035 at a 5.97% revenue CAGR.

### Does probiotic dairy still out-earn functional beverages?

27.4% of 2025 revenue goes to probiotic and fermented dairy, USD 73.6 billion, against 22.1% for functional beverages; by 2035 the two sit at USD 123.4 billion and USD 119.0 billion.

### Why are protein bars the quickest-growing functional food?

8.6% a year is the modelled growth for protein-enriched snacks and bars, from USD 27.7 billion to USD 63.2 billion, as protein moves from powders into snacks and high-protein dairy.

### How much of the functional food total does Asia Pacific hold?

38.7% in 2025, or USD 104.0 billion, growing 6.85% a year to USD 201.7 billion by 2035 on probiotic drinks and claim-labelled foods.

### What changed for US functional food labels after the FDA healthy rule?

28 April 2025 was the effective date of the rule published on 27 December 2024; companies must comply by 25 February 2028, with added sugars for grain products capped at 10% of the Daily Value.

### How concentrated is the functional food supplier base?

About 7.5% of revenue sits with the top three, by Douglas Insights estimate, led by Danone at about 4.5%, Abbott at 1.7% and Nestlé Health Science at 1.3%.

### Why did Japan's functional claim filings fall?

1,176 new Foods with Function Claims were notified in fiscal 2025, down 26% from 1,584, after 2024 rules added GMP and adverse-event reporting; withdrawals passed 1,923.

## Sources

- [US Food and Drug Administration, Federal Register, Food Labeling: Nutrient Content Claims; Definition of Term Healthy (final rule)](https://www.federalregister.gov/documents/2024/12/27/2024-29957/food-labeling-nutrient-content-claims-definition-of-term-healthy)
- [EUR-Lex, Regulation (EC) No 1924/2006 on nutrition and health claims made on foods](https://eur-lex.europa.eu/eli/reg/2006/1924/oj)
- [Yakult Honsha, Executive Summary, fiscal year ended March 31, 2025](https://www.yakult.co.jp/english/ir/management/pdf/Executive_Summary_March_31.2025.pdf)
- [Danone, 2025: Another year of strong delivery](https://www.danone.com/content/dam/corp/global/danonecom/investors/en-all-publications/2026/pressreleases/danonepr200226.pdf.coredownload.pdf)
- [Abbott Laboratories, SEC EDGAR, Abbott 2025 Annual Report (Form ARS)](https://www.sec.gov/Archives/edgar/data/1800/000130817926000066/abt014387_arsa.pdf)
- [Kirin Holdings, Announcement regarding the acquisition of Jamieson Wellness](https://www.kirinholdings.com/en/newsroom/release/2026/0807_05.pdf)

## How to cite

Douglas Insights, "Functional Food Market", DI-FB-10660, updated 2026-10-08, https://www.douglasinsights.com/functional-food-market/