"Just a few ingredients" makes food shoppers 22% more likely to buy
Describing a food or drink product as having "few ingredients" made people up to 22% more likely to choose it, even when the actual list was identical. We read fewer ingredients as more natural and healthier. The effect reverses for treats bought purely for pleasure.
Quick Summary
Across 19 experiments, including live Meta ad tests reaching over 98,000 people, framing a food or drink product as having "few ingredients" made shoppers prefer it, even when the ingredient list was identical to a "many ingredients" version. People chose an identical granola bar 21.6% more often, were 16.4% more likely to buy a juice, and up to 44.2% more likely to click a Meta ad.
If your food or drink product has a short ingredient list, say so plainly on the product page and packaging. Write the number as a digit ("Only 3 ingredients"). The one caveat: skip it for products bought for indulgence or for their range of nutrients, where "more" reads as better.
Key Finding
+22%
How much more often shoppers chose an identical granola bar when it was described as having few ingredients rather than many.
Kim et al., 2026
If you sell food or drink, one of the cheapest wins available is a framing change you can make in an afternoon. Shoppers consistently prefer products described as having few ingredients, because we equate a short list with natural, and a long list with processed.
The effect held across formats: +21.6% choice for a granola bar, +16.4% purchase intent for a juice, a striking +66.8% for a peanut butter, and up to +44.2% more clicks in real Meta ads. None of these required changing the product. Only the framing changed.
Why it works
We use ingredient count as a shortcut for how processed something is. Fewer ingredients signals natural, safer, and healthier, all qualities most food shoppers now actively want. The signal is strongest for people who already care about natural ingredients, which describes a large slice of the modern grocery and wellness market.
What to do on your Shopify store
- State the count where it is true. Add "Only 4 ingredients" to product titles, hero copy, and packaging shots for qualifying products.
- Use digits, not words. "3" draws the eye and reads as more factual than "three."
- List them when the list is genuinely short. "Just oats, dates, and cocoa" is even more persuasive than a bare number.
- Pair it with sourcing claims. Natural framing compounds with sustainability and provenance messaging.
Where to avoid it
The effect reverses when people are buying for pleasure (a rich, indulgent cookie), for uniqueness, or for a spread of nutrients (a multivitamin), where more ingredients implies more flavor or more benefit. It was only tested on food and drink, so do not assume it transfers to skincare or apparel.
This sits alongside two related trust levers: branded ingredients, which is a different mechanism, and showing where the money goes for quality-led brands.
Research: Kim, M.Y., Gershon, R., Scott, S.E., Kupor, D., Chen, T. & Trudel, R. (2026). Journal of Marketing Research. University of California, Washington University in St. Louis, and Boston University. https://doi.org/10.1177/00222437261432622
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