Where does dietary sodium come from?

Most U.S. sodium comes from packaged and restaurant foods

The CDC reports that most sodium consumed in the United States comes from packaged and restaurant foods. FDA consumer material similarly states that more than 70% of dietary sodium comes from packaged and prepared foods.

This changes the practical question from “How much salt did I add?” to “How much sodium is already in the foods and portions I ate?”

Foods do not need to taste very salty to contribute sodium

FDA notes that taste alone is not a reliable way to judge sodium content. Some breads, cereals, baked foods and other products may contribute sodium even when saltiness is not their dominant flavor.

Frequency matters as well. A moderately salty food eaten several times can contribute more sodium across the day than a very salty food eaten rarely.

Mixed dishes combine several sources at once

A sandwich can contain sodium from bread, deli meat, cheese, spreads, pickles and sauces. A pizza combines dough, cheese, sauce and toppings. A bowl of soup may contain sodium from broth, seasoning, processed ingredients and garnishes.

The Meal Sodium Calculator is designed for this type of accumulation because it shows both the total and the contribution from each entered item.

Ingredients can contain sodium even when they are not called salt

FDA gives MSG, sodium bicarbonate, sodium nitrite and sodium benzoate as examples of sodium-containing additives. Ingredient names containing “sodium” are therefore worth noticing when you are trying to understand a product.

The presence of such an ingredient does not tell you its quantity. Use the Nutrition Facts sodium value for the total amount per serving.

Restaurant sodium can be harder to estimate

Restaurant recipes, serving sizes, sauces and preparation methods vary. CDC recommends asking for nutrition information when it is available and requesting less added salt or sauces on the side when that suits your needs.

Avoid Salt does not assign entire cuisines a red, yellow or green sodium rating because cuisine type alone does not determine the sodium in a specific dish.

Home cooking gives you more control over added ingredients

CDC suggests preparing foods from their more basic forms when practical and using herbs, spices, garlic or citrus in place of some added salt. This does not mean every homemade meal is automatically low in sodium; packaged sauces, stocks, seasoning mixes and cured ingredients can still contribute substantial amounts.

Track the foods that contribute most to your own total

General lists of high-sodium foods are useful for orientation, but your own pattern depends on what you eat and how often. The Sodium Day Tracker can identify the largest contributors among the foods you enter.