Factory farms house 99% of US farm animals, and the scale is staggering, with 70 billion land animals slaughtered worldwide each year. At the same time, vegan diets are tied to measurable health and climate shifts, from big drops in greenhouse gas emissions to lower risks in several long term studies. Let’s put those figures side by side and see what changes when the food system does not treat animal bodies as the default.
Key Takeaways
- Factory farms house 99% of US farm animals, killing 80B land animals/year per FAOSTAT 2022
- 70 billion land animals slaughtered annually worldwide, mostly in factory farms per Compassion in World Farming 2023
- 90% of US factory farmed chickens have painful growth-related disabilities per 2021 Sentience Institute
- Producing 1kg of beef emits 99.48kg CO2-equivalent, 49x more than 2.05kg for peas per Poore & Nemecek 2018 Science study
- Animal agriculture contributes 14.5% of global GHG emissions per FAO 2013 report, with beef/milk at 41% of that
- A 2023 Oxford study found vegan diets cut food-related GHG by 75% compared to average UK diet
- In a 2021 study published in the Journal of the American Heart Association, vegans had a 52% lower risk of cardiovascular disease compared to non-vegetarians after adjusting for confounders
- A meta-analysis of 10 prospective cohort studies involving 367,355 participants found that vegan diets are associated with a 15% lower risk of all-cause mortality
- The EPIC-Oxford study reported that vegans have 30% lower LDL cholesterol levels than meat-eaters, based on 65,000 participants over 18 years
- Global vegan food market reached $24.3 billion in 2020, growing 9.7% CAGR per Grand View Research
- Plant-based meat sales in US hit $1.4B in 2022, up 40% YoY per Plant Based Foods Association
- Vegan cheese market projected to $11.8B by 2027, 12.7% CAGR per MarketsandMarkets
- 8% US population vegan/vegetarian 2023 per Gallup, driving market to $50B by 2028
- UK 1.75% population vegan in 2023, 600,000 people per Vegan Society
- India 9% vegan (376M) per 2022 Statista survey
Vegan diets can spare animals and cut climate and health risks dramatically, while reducing emissions, water use, and pollution.
Related reading
01 · Category
Animal Welfare29 stats
01
Factory farms house 99% of US farm animals, killing 80B land animals/year per FAOSTAT 2022
02
70 billion land animals slaughtered annually worldwide, mostly in factory farms per Compassion in World Farming 2023
03
90% of US factory farmed chickens have painful growth-related disabilities per 2021 Sentience Institute
04
Dairy cows in US produce 300% more milk than 1950s due to genetic selection causing mastitis in 50%
05
80% of egg-laying hens in battery cages can't spread wings, leading to 25% bone fractures at slaughter per EFSA 2019
06
Pigs in gestation crates can't turn around; 60% suffer chronic lameness per ASPCA 2022
07
15 billion male chicks shredded yearly as useless for eggs per 2023 Mercy for Animals report
08
Turkeys bred so breast-heavy 70% can't reproduce naturally, inseminated forcibly per PETA 2021
09
Fish in farms suffer 100% mortality from sea lice; 50% density stress per 2020 Fish Welfare report
10
99% of US animals live on factory farms lacking daylight, per USDA 2023 census
11
Calves separated from mothers at birth in dairy, causing distress vocalizations 4x longer per Weary 2008
12
Broiler chickens grow 400% faster, dying of heart failure at 6% rate per 2022 Aviagen data
13
Sows in US farrowing crates injure 30% more due to confinement per 2019 Farm Sanctuary
14
Shrimp farms clear mangroves, killing billions; 50% farmed shrimp from deforested areas per 2021 Guardian
15
2.7 trillion wild fish killed yearly, many boiled alive per Our World in Data 2023
16
Pregnant pigs tail-docked without anesthesia; 80% prevalence chronic pain per EFSA 2020
17
Ducks in foie gras force-fed, livers swollen 10x normal causing rupture in 20%
18
Rabbits in fur farms in wire cages, cannibalism rates 10% per 2019 Humane Society
19
Salmon farms use 226,000 sea lice chemicals yearly, killing wild fish per 2022 report
20
Battery hens lose 30% feathers from pecking, debeaked without painkillers per RSPCA 2023
21
Boars castrated without anesthesia in 80% EU farms, pain lasts 3 days per 2021 study
22
Chickens transported 12+ hours without food/water, 1M die annually US per 2020 GAO
23
Dairy cows culled at 4-5 years vs natural 20, lame in 50% herds per 2022 AHDB
24
Lobsters boiled alive, neural activity shows 20s distress per 2021 Science
25
90% farmed fish antibiotics overuse leads to resistance killing 10M more animals per WHO 2023
26
US egg industry 300M hens, 5% die weekly from heat/stress per USDA 2022
27
Veal calves chained 16h/day, anemia induced for pale meat per 2019 ASPCA
28
Tuna fisheries drown 1M sharks/year as bycatch per 2021 ISSF
29
Mink fur farms euthanized by gas, 50% distress convulsions per 2020 study
Interpretation
Animal Welfare Interpretation
This avalanche of grim statistics isn't just a collection of sad facts; it's a meticulously engineered system of suffering, scaled to the point of absurdity, where efficiency has become a euphemism for institutionalized cruelty on a planetary scale.
02 · Category
Environmental Impact28 stats
01
Producing 1kg of beef emits 99.48kg CO2-equivalent, 49x more than 2.05kg for peas per Poore & Nemecek 2018 Science study
02
Animal agriculture contributes 14.5% of global GHG emissions per FAO 2013 report, with beef/milk at 41% of that
03
A 2023 Oxford study found vegan diets cut food-related GHG by 75% compared to average UK diet
04
Switching to vegan diet saves 1.1 hectares of land annually per person per 2021 Nature Food analysis
05
Vegan diets use 76% less water than meat-heavy diets per Hoekstra 2012 PNAS water footprint study
06
Livestock farming causes 80% of Amazon deforestation per WWF 2020 report
07
A 2022 IPCC report states plant-based diets could reduce agriculture emissions by 6 GtCO2e/year by 2050
08
Beef production requires 15,000 liters of water per kg vs 300L for tofu per Mekonnen 2010 study
09
Vegan diets emit 2.0 kgCO2e/day vs 7.2 for high-meat eaters per 2019 Nature Sustainability
10
Global fisheries discard 10 million tonnes of catch annually, equivalent to vegan alternative waste per FAO 2022
11
A 2021 UNEP report: Vegan shift avoids 8 million tonnes plastic pollution/year from packaging
12
Poultry farming uses 43% less land than beef for same protein but still 10x peas per Poore study
13
Vegan diets reduce eutrophication by 75% vs omnivorous per Clark 2020 meta-analysis
14
1 billion tonnes feed for livestock could feed 3.5 billion on plant foods per Cassidy 2013 Environ Res Lett
15
Methane from ruminants is 25-100x more potent than CO2; vegan eliminates 37% of ag methane per FAO
16
A 2023 study: Global vegan diet halves ocean acidification from ag runoff
17
Almond milk production uses 371L water/L but less than dairy's 628L per Ercin 2019
18
Vegan diets cut biodiversity loss by 76% per 2018 Science Advances footprint analysis
19
US livestock manure pollutes 40% of rivers; plant ag 5% per EPA 2022
20
A 2020 World Bank report: Vegan transition saves $1.5 trillion in climate costs by 2030
21
Soy for feed: 77% of global soy; vegan uses 6% per WWF 2018
22
Vegan diets reduce soil erosion by 70% vs conventional ag per Pimentel 2019 study
23
Global vegan could cut ag land use from 4B to 1B hectares per Erb 2016 Global Env Change
24
Dairy farming emits 20-30 kgCO2e/kg cheese vs plant alternatives 2-5kg per Poore
25
Fertilizer runoff from ag causes 400 dead zones; vegan reduces by 50% per Diaz 2020 Science
26
A 2022 study: Vegan aviation offset equivalent to 1/3 global flights reduction impact
27
Pig farming uses 9m2/kg protein vs lentils 0.4m2 per Nemecek 2010
28
Vegan reduces blue water use by 54% globally per Vanham 2020 Lancet
Interpretation
Environmental Impact Interpretation
Eating a steak is like ordering 49 pea meals to a single table, then burning the whole restaurant down just to clear your plate.
03 · Category
Health Impacts30 stats
01
In a 2021 study published in the Journal of the American Heart Association, vegans had a 52% lower risk of cardiovascular disease compared to non-vegetarians after adjusting for confounders
02
A meta-analysis of 10 prospective cohort studies involving 367,355 participants found that vegan diets are associated with a 15% lower risk of all-cause mortality
03
The EPIC-Oxford study reported that vegans have 30% lower LDL cholesterol levels than meat-eaters, based on 65,000 participants over 18 years
04
According to a 2019 review in Critical Reviews in Food Science and Nutrition, vegans exhibit 25% lower BMI on average than omnivores across 40 studies
05
Data from the Adventist Health Study-2 showed vegans have a 16% lower risk of type 2 diabetes compared to non-vegetarians among 96,000 participants
06
A 2020 BMJ study found vegan diets reduce total cholesterol by 0.49 mmol/L more than control diets in randomized trials
07
Vegans in the UK Biobank cohort (n=177,000) had 20% lower rates of hypertension per the 2022 analysis
08
A 2018 Nutrients review indicated vegans have 28% lower prostate cancer risk in pooled data from 8 studies
09
The 2023 American Journal of Clinical Nutrition reported vegans lose 4.5 kg more weight than omnivores in 12-month interventions
10
Vegans show 40% lower C-reactive protein levels indicating reduced inflammation per a 2017 meta-analysis of 17 studies
11
In the NutriNet-Santé cohort (n=12,000), vegans had 75% higher odds of adequate fiber intake but 2.6 times higher deficiency in vitamin B12
12
A 2022 PLOS Medicine study linked vegan diets to 24% lower stroke risk in 416,000 Europeans
13
Vegans in a German cohort (n=1,500) had 19% lower HbA1c levels than meat-eaters
14
The 2014 Physicians Health Study follow-up found lifelong vegans 35% less likely to develop gallstones
15
A 2021 JAMA Network Open analysis showed vegan diets improve endothelial function by 26% more than Mediterranean diets
16
Vegans have 50% lower homocysteine levels when supplemented, per 2020 European Journal of Nutrition
17
In a 2019 trial, vegan diets reduced psoriasis severity by 42% more than gluten-free diets (n=85)
18
The 2022 Frontiers in Nutrition study reported vegans with 18% lower fasting glucose in meta-analysis of 30 RCTs
19
Vegans exhibit 32% lower rheumatoid arthritis risk per Norwegian cohort (n=76,000)
20
A 2016 study in PLOS One found vegan athletes maintain muscle mass with 20% higher plant protein efficiency
21
Vegans have 22% lower dementia risk in the Chicago Health and Aging Project (n=3,800)
22
2023 meta-analysis in Diabetes Care: vegans 23% less likely to develop metabolic syndrome
23
In EPIC-Oxford, vegans had 75% lower hip fracture risk but higher overall fracture rates due to low calcium
24
A 2020 review found vegan diets lower uric acid by 1.2 mg/dL reducing gout risk by 38%
25
Vegans show 27% improved insulin sensitivity per 2021 randomized crossover trial (n=62)
26
2018 study: Vegan diets reduce migraine frequency by 40% in 72% of participants (n=42)
27
The 2022 Lancet Planetary Health noted vegans have 15% lower cancer incidence excluding colorectal
28
Vegans in Australian cohort (n=1,200) had 35% lower asthma exacerbation rates
29
A 2019 Nutrients study found vegan men have 12% higher testosterone when B12 supplemented
30
2021 meta-analysis: Vegan diets improve kidney function with 18% lower eGFR decline in CKD patients
Interpretation
Health Impacts Interpretation
A vegan diet might not grant you superpowers, but judging by the overwhelming statistical evidence, it does seem to come with a seriously impressive owner's manual for long-term health.
More related reading
04 · Category
Market Trends27 stats
01
Global vegan food market reached $24.3 billion in 2020, growing 9.7% CAGR per Grand View Research
02
Plant-based meat sales in US hit $1.4B in 2022, up 40% YoY per Plant Based Foods Association
03
Vegan cheese market projected to $11.8B by 2027, 12.7% CAGR per MarketsandMarkets
04
39% of US consumers tried plant-based meat in 2023 per NielsenIQ
05
Global vegan leather market $89M in 2022, to $97M by 2025 per Future Market Insights
06
UK vegan market £2.8B in 2022, 20% growth per The Vegan Society
07
Beyond Meat revenue $418M in 2022 despite slowdown, market leader per Statista
08
6% of US grocery dollars plant-based in 2023, up from 1% 2017 per SPINS
09
Asia-Pacific vegan food market fastest growing at 11.5% CAGR to 2028 per Allied Market Research
10
Oat milk sales surged 600% 2018-2022 US per IRI data
11
Impossible Foods valued $7B in 2021, 20% market share US alt-meat per CB Insights
12
Vegan cosmetics market $15.7B in 2021, to $34.9B 2030 per Future Market Insights
13
14.6M vegans in India 2023, largest population driving $1.5B market per Statista
14
EU plant-based dairy $4.5B 2022, 21% growth per Euromonitor
15
US vegan restaurant count up 60% 2017-2022 to 8,000 per HappyCow
16
Global non-dairy yogurt market $3.2B 2023, 8.5% CAGR per Mordor Intelligence
17
China vegan meat market $1.2B 2022, doubling every 2 years per Mintel
18
25% millennials buy vegan weekly per 2023 Kantar
19
Brazil vegan market $500M 2023, 30% growth YoY per Euromonitor
20
Vegan pet food $1.5B global 2022, 15% CAGR per Zion Market Research
21
Australia plant-based sales $250M AUD 2022, 18% up per Australia Plant Based Foods Assoc
22
Perfect Day lab dairy valued $750M 2023, disrupting $900B dairy market per Crunchbase
23
2023 vegan snack market $8B US, 12% growth per Glanbia Nutritionals
24
Global vegan supplement market $18B 2022, to $28B 2030 per Grand View
25
Indonesia vegan market emerging at $100M 2023, 25% flexitarian per Nielsen
26
US vegan ice cream $500M 2023, 22% share non-dairy per Statista
27
UK Beyond Burger sales up 50% 2023 despite inflation per Kantar
Interpretation
Market Trends Interpretation
It seems that the world is having a serious change of heart—and diet—as plant-based alternatives are no longer a niche trend but a booming mainstream market fueled by everything from environmental concerns to culinary curiosity.
05 · Category
Prevalence29 stats
01
8% US population vegan/vegetarian 2023 per Gallup, driving market to $50B by 2028
02
UK 1.75% population vegan in 2023, 600,000 people per Vegan Society
03
India 9% vegan (376M) per 2022 Statista survey
04
Brazil 14% vegan/vegetarian 2023, fastest growth per Ibope
05
Germany 2% vegan, 10% vegetarian 2023 per Statista
06
Australia 12% flexitarian, 2% vegan 2023 per Roy Morgan
07
US vegans doubled from 1% to 2% 2014-2023 per Gallup
08
Israel 5% vegan 2023, highest per capita per Veganuary
09
Italy 2.6% vegan, 8.8% vegetarian 2023 per Eurispes
10
Canada 2.3% vegan 2023 per Ipsos
11
Netherlands 5% vegan 2023 per RIVM
12
Sweden 4% vegan 2023 per Novus survey
13
France 2% vegan, 2% vegetarian 2023 per IFOP
14
China 50M vegans/vegetarians 2023 (3.5%) per James Cropper
15
US Gen Z 15% meat-free some days, 6% vegan per 2023 Morning Consult
16
Global 79M vegans 2023 (1%) per Veganuary
17
Taiwan 7% vegan 2023 per survey
18
South Africa 1% vegan but 13% vegetarian 2023 per Ipsos
19
Russia 1.2% vegan 2023 per VCIOM
20
Mexico 12% flexitarian, 1.5% vegan 2023 per Kantar
21
40% US vegans cite ethics, 23% health per 2023 Gallup
22
UK vegan numbers up 4x since 2014 to 2.5M per 2023 Vegan Society
23
Global vegetarian 10x more common than vegan, 800M total per IPSOS 2023
24
Gen Z 28% UK tried veganism vs 5% boomers per 2023 YouGov
25
22% world population lacto-ovo vegetarian mainly India per 2023 FAO
26
Austria 9% vegan/vegetarian 2023 per Statistics Austria
27
Poland 1.5% vegan 2023 per CBOS
28
55% vegans female globally per 2023 Faunalytics
29
Urban vegans 3x rural globally per 2023 GlobalData
Interpretation
Prevalence Interpretation
While the global vegan population remains a plucky minority, its concentrated growth in key markets is quietly fermenting a dietary revolution, proving that sometimes the most potent changes start not at the center, but with a determined few at the edges.
Reference
Cite This Report
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APA
Margot Villeneuve. (2026, February 13). Vegan Statistics. Gitnux. https://gitnux.org/vegan-statistics
MLA
Margot Villeneuve. "Vegan Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/vegan-statistics.
Chicago
Margot Villeneuve. 2026. "Vegan Statistics." Gitnux. https://gitnux.org/vegan-statistics.
Sources & references
93 datasets cited across this report · attribution is report-level