Food adulteration includes economically motivated food fraud, undeclared ingredients, substitution, short-weighting, and other failures of composition or authenticity. Available measurements differ by country and test design: some figures are expert estimates, while others come from targeted samples or enforcement activity. The statistics below keep those distinctions explicit.
Contents
- Global and national snapshots
- India enforcement findings
- UK surveillance results
- UK product-specific findings
- U.S. honey and seafood sampling
- Incidents and regulatory responses
Global and national snapshots
The U.S. Food and Drug Administration (FDA) cites expert estimates that food fraud affects about 1% of the global food industry. The same FDA source cites estimates of an annual global economic cost of about $10 billion to $15 billion, while noting that more recent expert estimates put the cost as high as $40 billion. These are estimates cited by the FDA, not a single worldwide survey or a directly measured annual total. (FDA, Economically Motivated Adulteration; estimate cited by FDA, undated.)
Targeted testing gives more specific snapshots. In an FDA assignment conducted in 2016–2017, Sudan dyes were found in about 16% of imported palm-oil samples tested. That percentage describes the tested sample set and period; it does not establish the prevalence of Sudan dyes in all imported palm oil. (FDA, Economically Motivated Adulteration; 2016–2017.)
The UK’s 2022–23 surveillance programme tested authenticity, composition, and labelling across selected foods. It reported that 3% of 437 authenticity-tested samples were not authentic, 8% of 689 composition-tested samples were unsatisfactory, and 7% of otherwise satisfactory samples had labelling irregularities. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.) These measures should not be combined into one adulteration rate because they use different tests and denominators.
India enforcement findings
India’s Food Safety and Standards Authority of India (FSSAI) recorded 144,345 food samples analysed during financial year 2021–22. Of those, 32,934 were non-conforming. The non-conforming group included 4,890 samples classified as unsafe, 16,582 classified as substandard, and 11,462 involving labelling defects, misleading information, or miscellaneous defects. (FSSAI, Annual Report 2021–22; FY 2021–22.)
The same annual report recorded 28,906 civil cases launched, 19,437 civil-case convictions, and civil-case penalties totalling ₹533,915,801 during FY 2021–22. It also recorded 4,946 criminal cases launched and 671 criminal-case convictions involving fines and imprisonment. Criminal-case penalties totalled ₹13,822,020. These are enforcement outcomes, not a direct measure of the share of all food sold that was adulterated. (FSSAI, Annual Report 2021–22; FY 2021–22.)
Later FSSAI reporting shows a substantially larger enforcement-sample count. India lifted 439,108 enforcement samples in FY 2023–24: 17,051 central samples and 422,057 state samples. The reported total was 280.9% higher than in FY 2022–23. (FSSAI, Annexure II, CEO’s Detailed Report; FY 2022–23 to FY 2023–24.)
FSSAI laboratory reports uploaded from June through October 2024 included 117,965 test reports. Of these, 111,652 samples were reported as conforming and 6,313 as non-conforming. In a 2024 festive-season drive, authorities seized 32.5 tonnes of edible oil valued at ₹5,593,000 after mustard, sunflower, and rice-bran oil samples failed rapid testing. (FSSAI, Minutes of the 45th Food Authority Meeting; June–October 2024 and 2024 festive-season drive.)
UK surveillance results
The UK 2023–24 programme sampled and analysed 1,025 foods across 31 commodities. Public analysts reported 87% of basket and surveillance samples satisfactory for the tests performed. The basket-of-food samples had an 89% compliance rate, compared with 86% for surveillance samples. (UK Food Standards Agency, Surveillance Sampling Programme 2023–24; 2023–2024.)
Business size also differed in the reported results. Samples from large food businesses had a 90% compliance rate, compared with 86% for small businesses. The programme’s small online component had a 94% compliance rate. These rates describe the programme’s sampled foods and tests, not every product sold by businesses in those groups. (UK Food Standards Agency, Surveillance Sampling Programme 2023–24; 2023–2024.)
Authenticity and composition testing produced different findings:
| UK 2023–24 measure | Sample base or result |
|---|---|
| Authenticity samples reported authentic | More than 97% of 390 |
| Authenticity samples inconclusive | 3 |
| Composition samples unsatisfactory | 9% of 470 |
| Meat and meat-product composition checks non-compliant | 13% of 250 |
| Potato snacks above the acrylamide benchmark | 27% above 750 µg/kg |
Undeclared allergens were detected in fewer than 2% of the 180 foods tested for allergens. Every undeclared allergen found was milk protein, detected at 0.2–0.4 mg/kg. (UK Food Standards Agency, Surveillance Sampling Programme 2023–24; 2023–2024.)
UK product-specific findings
The UK 2022–23 programme tested 592 products from 15 frequently consumed commodity types. Reported compliance rates ranged from 63% to 97%, and 190 products were reported as non-compliant across the tested categories. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.)
Packaged bread had 63% compliance, with 7 of 35 samples containing undeclared allergens. Packaged sandwich meat had 68% compliance, with 18 of 56 samples unsatisfactory. One packaged sliced-turkey sample contained undeclared chicken DNA estimated at 5% of the DNA present. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.)
Several plant-based and spice products also produced specific findings. Only 73% of 30 oregano samples complied; four showed other leaves, mainly olive leaves. The highest lead result in the oregano testing was 5.68 mg/kg. African spice mixes and pastes had 73% compliance, and peanut protein was indicated in 15 of 56 samples. Ground nutmeg had 79% compliance among 29 samples, with six exceeding permitted contaminant levels. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.)
Olive-oil testing found 75% compliance among 36 samples, including four compositional failures and five labelling irregularities. Basmati-rice testing found 83% compliance among 36 samples, with three authenticity failures. Two basmati-rice samples contained 18% and 20% non-basmati varieties, exceeding the 7% code-of-practice limit. Pesto had 96% compliance among 23 samples; one sample contained undeclared plant material, particularly wheat. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.)
Tinned-meat testing found 73% compliance among 60 samples. One pork sample contained an estimated 1%–5% undeclared beef. The reported findings illustrate why composition, authenticity, allergen, contaminant, and labelling results need to be read separately rather than treated as interchangeable measures of adulteration. (UK Food Standards Agency, Surveillance Sampling Programme 2022–23; 2022–2023.)
U.S. honey and seafood sampling
The FDA tested 102 honey samples in FY 2025: 54 domestic and 48 imported. Four samples were violative, split evenly between two domestic and two imported samples. The reported violation rate was therefore 4% for domestic honey, based on 2 of 54 samples, and 4% for imported honey, based on 2 of 48. The FY 2025 imported-honey sample set covered products from 20 countries. (FDA, FY25 Honey Sampling and Analysis; FY 2025.)
Earlier imported-honey assignments reported different results: 3% of 107 samples were violative in FY 2022–23, while 10% of 144 samples were violative in FY 2021–22. The changing percentages come from separate assignment periods and sample sets, so they should not be interpreted as a continuous national trend without additional context. (FDA, FY25 Honey Sampling and Analysis; FY 2021–22, FY 2022–23, and FY 2025.)
For seafood, the FDA tested 28 imported retail frozen-seafood samples from four countries for short-weighting during 2022–2024. Ten samples were violative, a 36% rate. The violative samples were short-weighted by 2.3% to 9.9% relative to declared net weight. (FDA, Seafood Short-Weighting Results; 2022–2024.)
Incidents and regulatory responses
The UK recorded 1,903 notified food and feed safety incidents in 2024, down from 1,935 in 2023. In 2024, 15% of notified incidents were associated with meat and meat products excluding poultry, while 9% were associated with dietetic foods, food supplements, and fortified foods. (Food Standards Agency, Our Food 2024; 2023–2024.)
Separately, the Food Standards Agency investigated 1,837 food, feed, and environmental contamination incidents in 2023–24. The incident total and the investigation count use different reporting descriptions and periods, so they are not interchangeable measures. (Food Standards Agency, Consolidated Annual Report and Accounts 2023/24; 2023–2024.)
Regulatory action can follow a failed sample. All imported honey samples found violative in the FDA’s FY 2021–22 and FY 2022–23 assignments resulted in refusal of entry. The FDA also placed firms and products linked to imported violative honey samples on Import Alert 99-47 or increased screening and surveillance during FY 2021–22 through FY 2025. (FDA, FY25 Honey Sampling and Analysis; FY 2021–22 to FY 2025.)