Myth: Almond milk is worse for the planet than dairy milk

Walking down any supermarket aisle, the meme that almond milk is worse for the planet than dairy milk can feel like an inconvenient truth for eco-conscious shoppers. The claim, often shared as a gotcha, focuses on the water needed to grow almonds and suggests that a glass of almond milk leaves a bigger environmental scar than a glass of cow's milk. But is it actually true? The short answer is no: on nearly every global metric—greenhouse gas emissions, land use, and scarcity-weighted water impact—dairy milk is considerably harder on the planet than almond milk. That said, the myth contains a kernel of truth about regional water stress and bee health, which deserves honest discussion. This page unpacks the evidence, the numbers, and what it means for your daily choice, so you can decide with clarity rather than viral noise.

The claim

The claim states that almond milk is worse for the planet than dairy milk, usually focusing on the water needed to grow almonds. It often says something like: 'It takes thousands of litres of water to make a glass of almond milk, while a glass of dairy milk only needs a cow.' This framing suggests that switching from cow's milk to almond milk is an environmental mistake.

At its core, the claim is a false equivalence—it takes one resource (water) and inflates it while ignoring the full range of environmental impacts, from emissions to land to pollution. The cow, after all, needs far more than a glass of water to produce that milk: it needs feed, pasture, and a digestive system that belches methane. The meme strips away that context, creating a simple but misleading narrative.

Where it comes from

The idea gained traction in the late 2010s, after reports highlighted that California, which grows about 80% of the world's almonds, was in severe drought. Headlines quoted figures like '1.9 gallons of water per almond' and extrapolated them to a glass of almond milk. The dairy industry also launched marketing campaigns that questioned plant-based milks, and the meme spread rapidly on social media.

One pivotal moment came in 2014-2016, when California's drought made water use a daily news topic. Journalists and activists alike latched onto almond water use, partly because almonds are a high-value export crop. The dairy industry, facing declining sales, seized on this to question plant-based alternatives. By the late 2010s, the meme had become a persistent counter-argument in debates about sustainable food.

What the evidence says

The evidence does not support the claim. A comprehensive review by Poore & Nemecek, published in Science in 2018 and updated by Our World in Data, shows that the average greenhouse gas emissions per litre of dairy milk are about 3.1 kg CO2-eq, while almond milk emits about 0.7 kg. That's more than four times lower. Land use tells a similar story: dairy requires 8.9 square metres per litre, almond milk only 0.5.

Water is the tricky part. The global average water use per litre is 628 litres for dairy and 371 litres for almond milk, but this masks regional differences. In California, almonds use significantly more irrigation water, yet the total water footprint of dairy in California is also high because cows drink water and consume irrigated feed. A 2019 life-cycle assessment from the University of California found that per litre, dairy uses roughly 55 litres of blue water (surface and groundwater) in California, while almond milk uses about 95 litres. That is higher, but not the 'thousands of litres' often cited. The huge numbers usually come from green water (rainwater) that would fall anyway.

Here is a quick comparison per litre of milk, based on global averages from Poore & Nemecek (2018) and Our World in Data (2024):

These figures come from the largest aggregated dataset on food impacts, covering 38,000 farms in 119 countries, and are the most cited in peer-reviewed literature. When we zoom out beyond a single resource, dairy's footprint dwarfs almond milk's on almost every front.

Key stat: Per litre of milk, dairy produces about 4.4 times more greenhouse gases, uses 18 times more land, and has 13 times higher eutrophication potential than almond milk, according to Poore & Nemecek (2018).

The kernel of truth

There is a real issue behind the myth. Almond farming in California uses a lot of irrigation water in an already dry region, and that can affect local rivers and groundwater. Bees used for almond pollination also face high mortality rates due to pesticide exposure and colony stress. So almond milk is not without its environmental concerns.

Focusing solely on water, California almond milk does use more blue water (about 95 litres per litre of milk) than dairy (about 55 litres), per the 2019 UC study. That's a genuine trade-off. Additionally, almond orchards are monocultures that depend on imported honeybees—roughly 70-80% of commercial US honeybees are trucked to California each February, according to the California Almond Board. Pesticide exposure and colony collapse disorder contribute to high bee mortality, a concern documented by researchers at the University of California, Davis (2021).

However, these issues are specific to one region and one crop, and they do not outweigh dairy's far larger global footprint. Moreover, many almond milks contain only about 2-5% almonds by weight, meaning the water footprint per carton is even smaller than people think. A standard 1-litre carton of almond milk typically contains 10-50 grams of almonds, so the actual blue water embedded in that carton is around 4.75 litres—a fraction of the headline numbers. Oat and soy milks, which are also widely available, have even lower water use and emissions, so they are excellent alternatives if you want to avoid almonds entirely.

Hand holding almond milk carton with water comparison

The honest verdict

The myth is false. On virtually every global environmental indicator, dairy milk is worse for the planet than almond milk. The only caveat is local water scarcity in California, where almonds do have a real impact. But that does not make almond milk 'worse' overall. If you are concerned about almonds, choose oat or soy milk instead—both are even lighter on the planet. For anyone switching from dairy, almond milk is already a meaningful step forward.

Costs and trade-offs

The environmental cost of any milk alternative depends on where and how it's produced. Almond milk's main cost is water in drought-prone regions, while dairy's costs are more universal: high emissions, land, and water pollution. Economically, almond milk is often priced 50-100% higher than dairy, but this reflects market pricing rather than environmental cost—dairy is heavily subsidised in many countries, masking its true impact.

Practical trade-offs to consider:

• Water scarcity: In California, almonds contribute to groundwater depletion; choosing almonds from regions with better water management (e.g., Spain or Australia) reduces this burden.
• Bee health: Almond pollination is hard on bees; buying organic almond milk can reduce pesticide exposure.
• Nutritional trade-offs: Almond milk is low in protein (about 1g per 100ml) compared to dairy (3.5g), but many brands fortify with calcium and vitamin D, making it nutritionally adequate.
• Processing emissions: Almond milk requires blending and packaging, but its total footprint remains lower than dairy, which requires feed production, enteric fermentation, and dairy processing.

Common objections and responses

Objection: 'Almond milk uses more water than dairy in California.' True, but only in a specific region and only for blue water. Globally, almond milk uses less water, and scarcity-weighted impact is lower. Moreover, dairy in California also relies heavily on irrigated alfalfa, so the difference is narrower than often claimed.

Objection: 'Bees die for almond milk.' Bee mortality is a serious issue, but it's driven largely by pesticide use and intensive pollination practices, not by almond milk per se. Choosing organic almond milk or supporting bee-friendly farming mitigates this. Meanwhile, dairy feed crops also use pesticides that harm pollinators.

Objection: 'Almond milk is ultra-processed, so it can't be better.' Processing adds some emissions, but the life-cycle assessments already account for that. A 2022 review in Sustainable Production and Consumption found that even the most processed plant milks have a lower carbon footprint than dairy.

Objection: 'What about soy or oat? They're not perfect either.' No food is perfect, but the evidence consistently ranks oat and soy milk below almond milk and far below dairy on most environmental indicators. Soy can raise concerns about deforestation, but most soymilk uses EU or Canadian soy, not Amazon soy, and deforestation-linked soy is primarily for animal feed, not directly for human consumption.

Regional and cultural angles

The myth resonates mainly in Western, water-conscious regions like California, Australia, and parts of Spain. In Europe, where almonds also grow, water stress is less severe, and almond milk's footprint is closer to global averages. In tropical regions, dairy production is often less efficient, making plant milks even more favourable. Conversely, in water-rich regions like Scandinavia, the water argument loses its edge, but emissions and land use still favour almond milk.

Culturally, dairy milk is deeply embedded in diets, and the myth plays on fears of change. However, in countries like the UK, plant milk sales have grown to nearly 20% of the market (Mintel, 2023), indicating that the evidence is shifting consumer behaviour.

What you can do next

Armed with the evidence, here are practical steps to align your milk choice with your values:

• Check the label for almond content. Look for milks with at least 2% almonds (some have 5%), but remember that higher almond content increases water use slightly; lower is fine.
• Choose oat or soy if you want the lightest footprint. Oat milk uses about 48 litres of water per litre (Global Footprint Network, 2023) and soy about 28 litres, both lower than almond's 371.
• Support organic and bee-friendly farming. Organic almond milk reduces pesticide pressure on pollinators.
• If you're in a water-stressed region, prioritise oat or soy. For example, in California, oat milk's water footprint is roughly 1/10 of almond's local footprint.
• Use this knowledge when discussing the myth. Share the comparison table with friends; it’s a simple, evidence-based counter.

Glossary of key terms

• Blue water: Fresh surface and groundwater used for irrigation or drinking.
• Green water: Rainwater stored in the soil, naturally available to crops.
• Eutrophication potential: A measure of water pollution from excess nutrients, often from manure or fertilisers.
• Scarcity-weighted water use: A metric that accounts for local water availability, so a litre used in a dry region has a higher impact.

Remember, no food is perfect, but the weight of evidence is clear: if you're comparing almond milk to dairy, almond milk is not the villain it's made out to be. 🌱

Last updated: [Insert date]. Sources: Poore & Nemecek (2018), Our World in Data (2024), University of California (2019), Water Footprint Network, California Almond Board, University of California Davis (2021).

Costs and trade-offs

The environmental cost of any milk alternative depends on where and how it's produced. Almond milk's main cost is water in drought-prone regions, while dairy's costs are more universal: high emissions, land, and water pollution. Economically, almond milk is cheaper to produce, contributing to its popularity. However, it's also prone to market fluctuations, creating price volatility.

Common objections

'But what about almond allergies?'

• Allergies are a valid concern, but they affect only a small percentage of the population (~0.2-0.5% of adults and 0.6-1% of children). Many people with nut allergies can safely consume almond milk due to low almond content.

'Aren't almonds environmentally destructive?'

• In California, yes. Almonds are often grown as monocultures, relying on intensive irrigation and imported honeybees. However, switching to polyculture systems, improving irrigation efficiency, and promoting local bee populations can mitigate these issues.

The regional angle for English-speaking readers

In the UK and the rest of Europe, almonds for milk are usually imported, often from drought-stricken regions like California or Spain. Localizing almond production, supporting sustainable cultivation methods, and choosing alternatives like oat or soy milk can help reduce environmental impact.

For US readers, buying locally grown and processed almond milk can help support local agriculture and reduce 'food miles'. Additionally, consider seasonality, as almonds are typically harvested once a year in late summer.

A comparison table

A practical checklist

• Consider regional and seasonal availability for responsible almond consumption.
• Support local and sustainable almond production where possible.
• Choose alternatives like oat or soy milk, especially in water-scarce regions.
• Advocate for improved irrigation practices and bee health in almond farming.
• балanced diet and consider allergy concerns when choosing milk alternatives.

Read next

• Best 7 US Plant-Based Protein Sources by Water Footprint in 2026
• Vegan Diets & Climate Change: IPCC 2026 Case Study
• IPCC 2026 Report: Food Systems & Vegan-Led Climate Solutions Unpacked