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vegan mayo vs mayonnaise

How vegan mayo and mayonnaise compare on protein, climate impact, water use, land use, saturated fat and fibre — with a clear verdict.

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The numbers

The numbersvegan mayomayonnaise
Protein (g / 100 g)0.31
Climate impact (kg CO₂e / kg)1.83.5
Water use (L / kg)180620
Land use (m² / kg)1.43.6
Saturated fat (g / 100 g)3.55.5
Fibre (g / 100 g)00

The verdict

vegan mayo is the better everyday choice. It uses less land and water and carries a smaller carbon footprint than mayonnaise, while covering the same role on the plate. If protein density is your priority, adjust portion size rather than going back to mayonnaise.

Sources: Poore & Nemecek (Science, 2018), FAO, USDA FoodData Central, Mekonnen & Hoekstra (2011).

In depth

The longer answer

Vegan mayo and traditional mayonnaise are both creamy emulsions used as spreads, dips, and bases for dressings. The key difference lies in the binder: traditional mayo uses egg yolks, while vegan versions replace them with plant-based emulsifiers like soy protein, aquafaba (chickpea brine), or modified starches. People compare them because they want a convincing egg-free alternative that doesn't sacrifice texture or taste, especially for those with allergies, dietary preferences, or ethical concerns about eggs.

Nutritionally, vegan mayo often has less saturated fat and no cholesterol, since eggs are the primary source of both in traditional mayo. However, both are high in total fat and calories, typically from oil. The environmental footprint of vegan mayo is generally lower because egg production requires significant feed, water, and land, and generates greenhouse gases. Plant-based emulsifiers have a smaller impact, though the oil source (e.g., soybean vs. sunflower) also matters. The mechanism is straightforward: replacing animal ingredients reduces resource intensity.

In real life, the choice depends on priorities. For baking or rich, eggy flavor, traditional mayo may be irreplaceable. But for everyday sandwiches, dips, or salads, many vegan mayos perform nearly identically—some even win blind taste tests. Price can be higher for premium vegan brands, but store-brand versions are often competitive. Texture varies: some are thicker, others looser. If you're cooking for a mixed group, vegan mayo is a safe, inclusive option that rarely disappoints.

At a glance

Quick facts

Quick factsvegan mayo vs mayonnaise
DetailWhat to know
Main emulsifierEgg yolk vs. soy or aquafaba
Cholesterol contentNone in vegan mayo
Shelf lifeSimilar, once opened
Common oil baseCanola or soybean oil

In practice

What this means for you

  • Check the label for added sugar or starches, which some vegan mayos use to mimic egg texture.
  • For a neutral taste, choose an aquafaba-based vegan mayo; for richness, look for one with mustard or vinegar.
  • Store vegan mayo in the fridge after opening, just like regular mayo, to prevent spoilage.
  • Use vegan mayo in coleslaw or potato salad—it holds up well and won't separate.

FAQ

Common questions

Does vegan mayo taste like real mayo?
Most people find it very similar, especially in blind tests. The flavor difference is subtle—vegan versions can be slightly tangier or less rich. Brands vary, so trying a few is the best way to find one you like.
Can I use vegan mayo in baking?
Yes, but results may vary. Vegan mayo works well in cakes and muffins for moisture, but the texture can be slightly denser. For recipes relying on egg's leavening, you might need adjustments.
Is vegan mayo healthier than regular mayo?
It depends. Both are high in fat and calories. Vegan mayo has no cholesterol and often less saturated fat, but it's still a calorie-dense condiment. Moderation is key for either.

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