How is salt scored?

Mira rates salt with the same approach it uses for other foods — there is no separate "salt" methodology with special criteria. Because of what salt is, the result simply tends to land in the lower bands.

The main reason is nutritional quality. Salt is sodium, and too much sodium in the diet is linked to higher blood pressure and added strain on the heart and blood vessels. Under Nutri-Score principles, a very high sodium content pushes the rating sharply down, so on nutrition alone salt almost always falls into the "Poor" or "Bad" bands.

The second factor is additives. Salt often contains substances that prevent caking or fortify it (iodising compounds, for example). Each additive is assessed for risk based on scientific evidence, and the riskiest one caps the rating: if a high-risk additive is present, the product stays in the lower bands regardless of the rest.

How the salt is made or sourced — sea, rock, refined or unrefined — does not change the rating on its own. Mira looks at composition and nutritional quality, not origin. That is why salt almost always appears as a low-rated product in the app. It is not a reason to cut it out entirely, but a reminder to keep the amount in check.

The rating is Mira's opinion. The words "Excellent", "Good", "Poor" and "Bad" refer to the rating, not to the product itself.