The way food looks can shape what we expect from it before we ever take a bite.

A new study suggests that even something as small as where the sauce sits on the plate can change how healthy a dish appears.

Researchers in Tokyo served 57 adults the same sturgeon dish in two ways. In one version, the sauces were placed separately on the plate. In the other, they were drizzled around and across the food.

Before tasting, participants rated the separately plated version as healthier.

The food itself was the same.

On a seven-point scale, the version with the sauces placed separately received an average healthiness rating of 4.65, compared with 4.05 for the drizzled version.

“We observed that minimal plating made the same dish appear healthier, showing how small visual details can influence our first impressions of the food,” said study author Kosuke Motoki of Keio University.

The researchers suggest the simpler presentation may have looked less visually dense or may have given diners a greater sense of control over how much sauce they would use.

But those ideas were not directly tested.

After tasting, participants showed some signs of liking the separately plated version more and wanting to eat more of it, but those differences were not strong enough to be considered reliable.

The study, published in Foods, does not show that serving sauce separately makes a meal healthier or changes how much people eat.

Instead, it adds to evidence that appearance can shape how we judge food before tasting it.

There are important limits. The study was small, used one dish in one restaurant and included participants recruited through the researchers’ networks. The findings may not apply to other foods, cultures or dining settings.

Still, the main result is a useful reminder: food can look healthier without actually being healthier.

Sometimes the difference is simply in the plating.

The study received no external funding. One author, chef Tatsuya Noda, is employed by PLUM KNOT Co., Ltd., which was paid to prepare the food used in the study.