Sodium is in almost everything you eat and drink, and a surprising number of non-food products too. The average American takes in about 3,400 mg of sodium per day, well above the recommended limit of 2,300 mg. Most of that sodium doesn’t come from the salt shaker. It comes from processed and prepared foods, restaurant meals, and ingredients you might not think of as salty at all.
The Top 10 Sources in the American Diet
CDC data from dietary surveys shows that just 10 food categories account for 40% of all sodium Americans consume. The biggest contributors, ranked by their share of total intake:
- Deli meat sandwiches (6.3%)
- Pizza (5.4%)
- Burritos and tacos (5.3%)
- Soups (4.1%)
- Savory snacks like chips, crackers, and popcorn (3.8%)
- Poultry (3.7%)
- Pasta dishes (3.0%)
- Vegetables (2.9%)
- Burgers (2.8%)
- Eggs and omelets (2.7%)
Some of these are obvious. You’d expect chips and pizza to be salty. But poultry, vegetables, and eggs make the list not because they’re naturally high in sodium, but because of how they’re prepared. Chicken is often brined or seasoned before sale, canned vegetables are packed in salted water, and eggs at restaurants are typically cooked with added salt and paired with cheese or processed meats.
Foods That Seem Healthy but Pack Sodium
Bread is one of the most underestimated sodium sources. A single slice of commercial bread contains 200 to 400 mg of sodium. Two slices for a sandwich can deliver a third of your daily limit before you add any filling. Breakfast cereals are similar. A serving of Corn Flakes has 204 mg, and a cup of Cheerios has 230 mg. Not all cereals are the same, though. Frosted Mini Wheats contain just 10 mg per serving.
Soup is another category where sodium adds up fast. A single can of condensed soup often contains over 1,500 mg, nearly a full day’s worth. Even soups labeled “reduced sodium” can have 400 to 600 mg per serving, and most cans contain two servings. Canned vegetables, tomato sauces, and jarred pasta sauces follow the same pattern. The canning and preserving process relies heavily on salt.
Condiments and Dressings
Small amounts of condiments can contribute meaningful sodium. A single tablespoon of soy sauce typically contains around 900 mg of sodium, nearly 40% of the daily limit. Salad dressings are less extreme but still add up, especially when you use more than the suggested serving size. Sesame seed dressing has about 150 mg per tablespoon, thousand island has 143 mg, and regular mayonnaise has 88 mg. Even a tablespoon of ketchup adds roughly 150 to 190 mg.
The issue with condiments is that people rarely measure them. Two or three tablespoons of dressing on a salad can quietly add 300 to 450 mg of sodium to a meal you thought was light.
Salt vs. Sodium: The Difference Matters
Table salt is sodium chloride, and sodium makes up only part of it. One gram of salt contains 390 mg of sodium. So when a recipe calls for a teaspoon of salt (about 6 grams), you’re adding roughly 2,340 mg of sodium in that single teaspoon. This distinction matters when reading labels too. Some products list salt content, others list sodium. If you see a number for salt, multiply by 0.39 to get the sodium equivalent.
Sodium Hiding in Medications
Food isn’t the only source. Effervescent and dissolvable medications can contain startling amounts of sodium. Effervescent pain relievers (the kind you drop in water) contain 390 to 440 mg of sodium per tablet. A single sachet of fizzy antacid can have 850 mg. Even effervescent vitamin supplements add about 280 mg per tablet. Research published in the European Heart Journal found that people who regularly used high-sodium medication formulations had higher risks of cardiovascular disease compared to those taking standard versions of the same drugs.
If you take effervescent medications daily, that sodium adds to your dietary total and can push you well over the recommended limit without you realizing it.
How to Read Sodium Labels
The FDA defines specific thresholds for sodium claims on food packaging. “Sodium-free” means fewer than 5 mg per serving. “Very low sodium” means 35 mg or less. “Low sodium” means 140 mg or less per serving. Anything without a claim can contain far more, and the serving size on the label is often smaller than what you’d actually eat.
The recommended daily limit is 2,300 mg for adults and teens. Children need even less: 1,200 mg per day for ages 1 through 3, 1,500 mg for ages 4 through 8, and 1,800 mg for ages 9 through 13. These limits are based on evidence linking sodium reduction to lower cardiovascular and blood pressure risk.
Where Sodium Is Lowest
Fresh, whole foods are consistently the lowest in sodium. A plain piece of raw chicken breast has about 70 mg of sodium per serving. A fresh tomato has around 5 mg. Fresh fruit is nearly sodium-free across the board. The pattern is simple: the less processing a food goes through, the less sodium it contains. Frozen vegetables without sauce, dry-roasted unsalted nuts, plain grains like rice and oats, and fresh meat and fish all fall at the low end.
Cooking at home with whole ingredients gives you the most control. When you do buy packaged foods, comparing sodium per serving across brands can reveal large differences. Two cans of the same type of soup can vary by 500 mg or more depending on the brand.