Sodium Intake Calculator
Adds up sodium from breakfast, lunch, and dinner to show your total daily intake in milligrams. Use it to check whether you are staying within heart-healthy sodium limits.
About this calculator
Sodium is an essential electrolyte that regulates fluid balance and blood pressure, but excess intake is strongly linked to hypertension and cardiovascular disease. The American Heart Association recommends no more than 2,300 mg of sodium per day, with an ideal target of 1,500 mg for most adults. This calculator sums sodium across three meals using the formula: Total Sodium = mealSodium1 + mealSodium2 + mealSodium3. Sodium content is listed on all US nutrition labels in milligrams per serving. Since roughly 70% of dietary sodium comes from packaged and restaurant foods rather than the salt shaker, tracking meal-by-meal is the most reliable way to identify where excess sodium is hiding in your diet.
How to use
Suppose your breakfast is oatmeal with 160 mg sodium, lunch is a turkey sandwich with 890 mg, and dinner is a frozen pasta meal with 960 mg. Enter 160 in 'Breakfast Sodium', 890 in 'Lunch Sodium', and 960 in 'Dinner Sodium'. The calculator computes: Total Sodium = 160 + 890 + 960 = 2,010 mg. This total is under the 2,300 mg guideline but above the 1,500 mg ideal target, suggesting the frozen dinner is a high-sodium item worth swapping for a lower-sodium alternative to better protect blood pressure.
Frequently asked questions
How much sodium per day is considered safe for people with high blood pressure?
The American Heart Association recommends that adults with hypertension aim for no more than 1,500 mg of sodium per day, which is less than ¾ of a teaspoon of table salt. Even reducing from 3,400 mg (the average US intake) to 2,300 mg can lower systolic blood pressure by 2–8 mmHg. For people on certain blood pressure medications, sodium restriction can enhance the drug's effectiveness. Individual sensitivity to sodium varies, so consulting a physician or registered dietitian for a personalized target is advisable. The DASH diet, which caps sodium at 2,300 mg, is one of the most evidence-backed approaches for managing hypertension through diet.
What foods are the biggest hidden sources of sodium in a daily diet?
Bread and rolls are consistently the number-one source of sodium in the American diet, not because they taste salty but because people eat them frequently and in large quantities. Cured meats, canned soups, pizza, and fast food are also major contributors. A single restaurant meal can easily contain 2,000–4,000 mg of sodium. Cheese, condiments like soy sauce and ketchup, and breakfast cereals are additional sources many people overlook. Reading nutrition labels and choosing low-sodium versions of packaged staples is one of the most impactful steps you can take.
Does cooking with less salt meaningfully reduce daily sodium intake?
Cooking at home with less added salt helps, but it typically accounts for only about 11% of total sodium intake for most people in developed countries. The majority — roughly 70% — comes from sodium already present in packaged, processed, and restaurant foods before you add anything. This means that choosing lower-sodium packaged foods has a far greater impact than removing the salt shaker from the table. That said, replacing salt with herbs, spices, citrus, and vinegar during cooking can make unsalted food more palatable, making it easier to sustain a low-sodium diet long-term. Over time, taste buds adapt to lower salt levels, reducing cravings for salty foods.