Food roast · 78% slop

Is Mayo healthy? Seed-oil sludge in a jar

Your fridge staple is industrial oil dressed up as food.

July 25, 2026 About Mayo

Mayonnaise photo — Photo: Open Food Facts

Default mayo: soybean sludge that makes great-grandma weep.

The Take

Mayo earns a Slop Score of 78. It fails the healthy test because most jars open with soybean or canola oil, turning a simple condiment into ultra-processed seed-oil sludge.

The egg yolks add choline and fat, but they cannot rescue the industrial base. This is convenience food that signals zero effort on ingredients.

The Verdict

Skip the jar. Real food does not need soybean sludge to hold together.

Buy Primal Kitchen avocado-oil mayo instead for an olive or avocado base without the cheap filler. Slop Score 78.

Common Questions

Does Mayo have seed oils?

Yes. Most commercial versions lead with soybean or canola oil.

Is Mayo ultra-processed?

Yes. It is a manufactured emulsion, not whole food.

What is a healthier alternative to Mayo?

Primal Kitchen avocado-oil mayo uses avocado oil and organic eggs.

Buy instead

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Buy instead Primal Kitchen avocado-oil mayo

Skip the jar. Buy Primal Kitchen avocado-oil mayo — olive/avocado base, no soybean sludge.

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