Most of your sodium is added before food reaches your kitchen

Key takeaways

• More than 70% of the sodium Americans eat is added during manufacturing and commercial cooking, the FDA says².
• Deli meat sandwiches, soups, pizza and poultry top the CDC’s newest list of adults’ sodium sources, from 2021–2023 data¹.
• The National Academies set 2,300 mg a day as the level above which adults should cut back, and found too little evidence that low intakes cause harm⁶.
• A teaspoon of fine table salt holds about 2,300 to 2,400 mg of sodium; a teaspoon of one fine kosher salt brand holds about 1,120 mg¹⁷.
• On October 13, 2026, the FDA published a final rule letting makers use salt substitutes in 139 standardized foods, including breads and cheeses⁴.

On October 13, 2026, the Food and Drug Administration changed the rules for 139 foods⁴. Cheeses, breads, canned vegetables and self-rising flour are among the foods with federal “standards of identity,” recipes that spell out what they must contain⁴. The new rule lets makers replace some or all of their salt with a salt substitute, mostly starting December 14⁴.

Why tinker with a dinner roll? That’s where the salt is. More than 70% of the sodium Americans eat goes in during manufacturing and commercial food preparation, the FDA says².

So the biggest sodium decisions in your day are often made in a factory or a restaurant kitchen, long before you pick up a fork.

More than 7 in 10 milligrams are added by someone else

Americans average more than 3,300 milligrams (mg) of sodium a day, the Centers for Disease Control and Prevention (CDC) says¹. The FDA’s figure is about 3,400 mg, which by our math is almost 50% above the limit²³.

Table salt is sodium chloride, and by weight it’s 40% sodium¹. A teaspoon holds about 2,400 mg of sodium by the CDC’s count¹.

By our math, the U.S. average is almost a teaspoon and a half of salt a day, and the limit just under one.

In 2026, the CDC updated its list of top sodium sources, using national survey data from 2021 to 2023¹. For adults, deli meat sandwiches, soups, pizza and poultry led the way. Our swap table below lists the full top 10¹.

Poultry and vegetables surprise people, but packaged or processed versions often carry added sodium, the CDC notes¹. For children and teens, savory snacks such as chips and crackers ranked first¹.

Three numbers from three bodies: 2,300, 2,000 and 1,500

2,300 mg. In 2019, the National Academies of Sciences, Engineering, and Medicine created a new kind of target, the Chronic Disease Risk Reduction Intake⁶. For everyone 14 and older, it’s 2,300 mg a day. Cutting back from above that level is expected to lower the risk of heart disease and high blood pressure⁶. The federal Dietary Guidelines for Americans use the same limit for teens and adults¹³.

1,500 mg. The same report set an Adequate Intake of 1,500 mg for ages 14 and up⁶. That’s the lowest level tested in randomized trials, where people are assigned by chance to one diet or another, with no sign of deficiency⁶. The American Heart Association (AHA) has called 1,500 mg an ideal limit, with 2,300 as a ceiling¹⁰. Your body needs only about 500 mg a day for basic functions, Harvard nutrition researchers note⁷.

2,000 mg. The World Health Organization (WHO) advises adults to stay under 2,000 mg of sodium, or 5 grams of salt⁸.

Children have lower limits, from 1,200 to 1,800 mg depending on age⁶.

The world is far from all of these. WHO’s 2023 global report put average intake at about 4,310 mg a day and said the 30% cut that countries pledged for 2025 was not being achieved⁸. As of October 2022, only 9 of 194 countries had WHO’s full set of sodium policies⁸. The United States scored 3 out of 4⁸.

Cutting salt lowers blood pressure: how low to go is the fight

That less sodium lowers blood pressure is about as settled as nutrition science gets⁶. Our articles comparing diets and on blood pressure habits cover the key feeding trials.

The harder question is whether eating less for years prevents heart attacks, strokes and deaths.

The case for lower: 24 years of urine samples

The Trials of Hypertension Prevention (TOHP) enrolled adults ages 30 to 54 with slightly high blood pressure⁹. Their sodium was measured the hard way, with complete 24-hour urine collections, up to seven times⁹.

Ten to 15 years later, people who had been assigned to cut sodium were 25% less likely to have had a heart attack or stroke, and less likely to need a heart procedure or die of heart disease, Harvard’s Nutrition Source reports⁷.

The 2016 follow-up tracked deaths for a median of 24 years⁹. By then, 272 of the 2,974 people outside the sodium-cutting groups had died, about 9% by our math⁹. Those who ate under 2,300 mg a day had a 25% lower death risk than those eating 3,600 to 4,800 mg⁹. Each extra 1,000 mg went with 12% higher risk, in a straight line with no rise at the low end⁹.

The fine print: that result was observational and statistically borderline, and the randomized comparison showed a 15% lower death risk that could have been chance⁹.

The case against going too low: the PURE study

The Prospective Urban Rural Epidemiology (PURE) study, led by Andrew Mente in Canada, estimated sodium from one morning urine sample in adults ages 35 to 70 in 18 countries¹⁰.

In a 2018 analysis of 82,544 people in 255 communities, heart events and strokes rose with sodium only where average intake topped about 5,000 mg a day¹⁰. In lower-intake communities, more sodium even went with fewer heart attacks and deaths¹⁰. The authors said 3,000 to 5,000 mg a day carried the lowest risk¹⁰.

Franz Messerli of Bern, an editorial co-author, called a 1,500 mg goal unrealistic¹⁰. He disclosed grants and fees from several drug and device companies, among others¹⁰.

Why most guideline bodies sided with TOHP

Critics raise three problems with PURE-style studies:

• The measurement. A single spot of urine, converted with formulas such as the Kawasaki equation, can badly misjudge a person’s usual intake. CDC scientists Mary Cogswell and Thomas Frieden argued that only multiple full-day collections can show it¹¹¹².
• The formulas. The conversions use age, sex, weight and other traits that also predict heart disease¹¹.
• Reverse causation. Sick people may eat less or take water pills. In PURE, the lower-sodium group was older, with more heart disease and diabetes¹¹.

Those critics, led by Francesco Cappuccio, aren’t neutral either; their review’s title calls the opposing case “a controversy based on denial”¹¹. They charge that some researchers who called low sodium harmful had food-industry funding they didn’t always declare¹¹. Weigh both camps with the same care.

In 2019, the National Academies found too little evidence that low intake causes harm⁶. For U.S. readers, the real question is whether trimming an average diet of about 3,400 mg toward 2,300 pays off. TOHP and the National Academies say it does³⁶⁹.

Heart failure: a strict limit didn’t beat usual care

Doctors have long told people with heart failure to cut salt to prevent fluid buildup¹⁴. The SODIUM-HF trial, published in The Lancet in 2022, finally tested it¹³.

Researchers assigned 806 outpatients with heart failure to a diet under 1,500 mg a day or to usual care¹³. After a year, the low-sodium group was eating about 1,658 mg and the usual-care group about 2,073 mg¹³.

Death, heart-related hospital stays or emergency visits struck 15% of the low-sodium group and 17% of the usual-care group, a difference that could have been chance¹³. Quality of life was modestly better with low sodium¹³. The trial was funded by the Canadian Institutes of Health Research¹³.

It had limits. It ended early, follow-up was under a year, the two groups’ intakes were only about 370 mg a day apart at six months, and no U.S. patients took part¹³¹⁴.

The 2022 heart failure guideline from the AHA, the American College of Cardiology (ACC) and the Heart Failure Society of America calls avoiding excessive sodium “reasonable” to ease congestion, the ACC notes¹⁵. In an ACC online poll that year with 127 votes, 59% favored a limit under 2,000 mg and 26% under 3,000¹⁵.

Washington’s slow salt campaign

The FDA’s main tool is voluntary. In October 2021, it finalized Phase I sodium targets for food categories, measured against a 2010 baseline and meant to be met by April 2024³.

By 2022, about 40% of the Phase I targets had been met or come within 10%³. An earlier voluntary effort, the National Salt Reduction Initiative, saw 26% of packaged food categories meet its 2012 targets².

In August 2024, the FDA proposed Phase II, with three-year targets for 163 food categories³. If food makers meet them, average intake would fall to about 2,750 mg a day, still above the 2,300 mg limit²³. As of October 2026, those targets were still a draft⁴.

One model cited by the FDA estimates that cutting average intake to 2,200 mg a day would prevent 280,000 to 500,000 early deaths over 10 years².

Two rules add to the push:

• Salt substitutes. Proposed in April 2023 and finalized October 13, 2026, the rule lets 139 standardized foods use substitutes³⁴. More than 120 comments came in, some warning about potassium-based substitutes for people who must limit potassium⁴. The FDA declined to require a warning, but potassium chloride must still be named in the ingredient list⁴.
• “Healthy” on labels. A final rule published in December 2024 sets sodium limits for the claim as a share of the Daily Value, up to 15% per serving for mixed products⁵. Makers have until February 25, 2028, to comply, and the claim is voluntary⁵.

The sodium detective: read the label, then do the math

This is our own tool for turning labels and recipes into numbers you can add up.

What you see	What it means	The sodium math
“Sodium 480 mg” on Nutrition Facts	Sodium in one serving, as the label defines it	Multiply by the servings you eat. Divide by 2,300 for your share of the daily limit (480 is about 21%)
“Salt” or “sea salt” in the ingredients	Mostly sodium chloride, which is 40% sodium by weight17	A teaspoon of fine salt is about 2,300 to 2,400 mg17
“Kosher salt” in a recipe	Crystal size varies by brand, so the sodium in a spoonful does too	One fine kosher brand is about 1,120 mg per teaspoon and a coarse kosher salt about 1,920; table salt about 2,3007
“Potassium chloride” or “salt substitute”	Replaces some salt; substitutes are allowed in more standardized foods from December 14, 20264	Less sodium; potassium-based ones add potassium, so see our potassium article if you must limit it
“Healthy” on the front	Must meet FDA sodium limits by February 20285	Mixed products up to 15% of the Daily Value per serving5
“Low sodium,” “reduced sodium,” “no salt added”	Each claim has a legal definition; our Nutrition Facts article lists them	Read the milligrams anyway

Your daily budget, in four steps.

1. Start with 2,300 mg, or the lower target your clinician gives you⁶.
2. Subtract each packaged food’s milligrams times the servings you eat.
3. Subtract home salt. By our math, each quarter teaspoon of fine salt is about 600 mg.
4. Divide pot salt by servings. A teaspoon in soup for six adds about 400 mg a bowl, by our math.

The biggest sources and simple swaps

The ranking comes from the CDC¹; the swaps are ours, and our spices article covers seasoning without salt.

CDC rank	Source	A simple swap
1	Deli meat sandwiches	Roast and slice your own chicken or turkey
2	Soups	Make a pot from scratch, or compare cans by milligrams
3	Pizza	Choose vegetable toppings over cured meats and extra cheese
4	Poultry	Buy plain fresh poultry and check the label for added solution
5	Savory snacks	Plain popcorn or unsalted nuts you season yourself
6	Pasta mixed dishes	Build sauce from no-salt-added tomatoes, garlic and herbs
7	Breads, rolls, buns	Compare loaves by milligrams per slice; brands differ
8	Cheese	Use a small amount of a sharp cheese for more flavor per bite
9	Meat mixed dishes	Batch-cook chili or stew so you control the salt
10	Vegetables	Choose plain frozen or no-salt-added canned vegetables

Sea salt, pink salt and kosher salt are the same mineral in different spoons

Per teaspoon, Harvard’s comparison puts fine sea salt at about 2,120 mg of sodium and pink Himalayan salt at about 2,200, close to table salt’s 2,300⁷. Specialty salts are still mostly sodium chloride.

The big differences come from the crystals. Coarse sea salt runs about 1,560 mg per teaspoon and one fine kosher brand about 1,120⁷. Grains that pack loosely leave air in the spoon. A recipe written for that kosher salt, made with table salt spoon for spoon, could roughly double its sodium, by our math.

Switching away from iodized salt? Our iodine article explains why your shaker matters.

What the evidence shows

Claim	Evidence rating	What it rests on
Eating less sodium lowers blood pressure	Strong evidence	Trials reviewed by the National Academies6
Lower sodium over years prevents heart attacks, strokes and deaths	Promising but early	TOHP follow-ups; the randomized death result was not significant79
Intakes below about 3,000 mg raise heart risk	Not enough evidence	Spot-urine cohort studies with disputed methods; National Academies found no clear harm61011
Going under 1,500 mg helps people with heart failure	Evidence says no, or unsafe	No clear benefit on events in SODIUM-HF, a single trial with limits1314
Voluntary FDA targets have lowered sodium in many foods	Promising but early	About 40% of Phase I targets met or close by 20223

Your kitchen is the natural fix

Many natural-health readers distrust food made in factories. On sodium, the data back that instinct: with most of it added before food reaches you, cooking your own meals is the most direct way to take control².

Salt habits are cultural, not fixed. The 1988 Intersalt study tested more than 10,000 adults in 32 countries. Intake ran from about 200 mg a day among the Yanomamo people of Brazil to 10,300 mg in northern Japan⁷.

You don’t need to give up salt or pick a camp in the debate. Season with herbs, acid and spice, and let the milligrams guide the rest.

Questions readers ask

The bottom line

Most of the sodium Americans eat is added before the food reaches them, and the average adult eats well over the 2,300 mg limit. Cutting back lowers blood pressure, and long follow-ups suggest fewer heart events, though the debate over very low intakes isn’t settled.

Either way, the path is the same: learn the top sources, read milligrams, mind your spoon with kosher salt and cook more from scratch. If you have heart failure or kidney disease, or take blood pressure medicine, set your target with your clinician.

Keep exploring: blood pressure categories 2025 and normal resting heart rate.

Related reading

• Habits can lower blood pressure like a pill, and a home cuff keeps score
• A Potassium Pill Holds 99 Milligrams. A Baked Potato Holds 610
• Five lines on the nutrition facts label do most of the work
• Iodine Is Slipping in American Diets. Kelp Pills Are the Wrong Fix
• Spices can help you cut salt, though some batches have carried lead

Sources

1. Centers for Disease Control and Prevention. “Sodium and Health” (top sodium sources from NHANES 2021–2023). CDC, last updated June 29, 2026. cdc.gov
2. U.S. Food and Drug Administration. “Draft Guidance for Industry: Voluntary Sodium Reduction Goals (Edition 2).” FDA, August 2024. fda.gov
3. U.S. Food and Drug Administration. “Sodium Reduction in the Food Supply.” FDA, content current as of November 1, 2024. fda.gov
4. U.S. Food and Drug Administration. “Use of Salt Substitutes To Reduce the Sodium Content in Standardized Foods.” Final rule, Docket FDA-2022-N-2226, Federal Register, October 13, 2026 (public inspection document 2026-20848). public-inspection.federalregister.gov
5. U.S. Food and Drug Administration. “Food Labeling: Nutrient Content Claims; Definition of Term ‘Healthy’.” Final rule, Federal Register, vol. 89, no. 248, December 27, 2024. govinfo.gov
6. National Academies of Sciences, Engineering, and Medicine. “Dietary Reference Intakes for Sodium and Potassium.” Consensus Study Report Highlights, March 2019. nap.nationalacademies.org
7. Harvard T.H. Chan School of Public Health, The Nutrition Source. “Salt and Sodium.” Last reviewed March 2023. nutritionsource.hsph.harvard.edu
8. World Health Organization. “WHO Global Report on Sodium Intake Reduction.” WHO, March 2023 (copy hosted by DINTA, Chile). dinta.cl
9. American College of Cardiology. “Sodium Intake and All-Cause Mortality Over 20 Years in the Trials of Hypertension Prevention” (journal scan of Cook NR, Appel LJ, Whelton PK, Journal of the American College of Cardiology, 2016;68:1609–1617). October 3, 2016. acc.org
10. TCTMD. “Faulting Salt? New PURE Analysis Argues Against Low Sodium Intake” (on Mente A, O’Donnell M, et al., The Lancet, 2018). August 10, 2018. tctmd.com
11. Cappuccio FP, Campbell NRC, He FJ, Jacobson MF, MacGregor GA, Antman E, Appel LJ, et al. “Sodium and Health: Old Myths and a Controversy Based on Denial.” Current Nutrition Reports, 2022;11:172–184. link.springer.com
12. Cogswell ME, Frieden TR. “The Authors Reply” (letter on dietary sodium and cardiovascular disease risk). New England Journal of Medicine, 2016;375(24):2407–2408 (CDC Stacks). stacks.cdc.gov
13. American College of Cardiology. “Study of Dietary Intervention Under 100 mmol in Heart Failure – SODIUM-HF” (on Ezekowitz JA, et al., The Lancet, 2022;399:1391–1400). April 2022. acc.org
14. American College of Cardiology. “Efficacy of Dietary Sodium Restriction in Heart Failure: Urban Legend or Scientific Fact?” July 15, 2022. acc.org
15. American College of Cardiology. “Poll Results: Sodium Restriction in Patients With Heart Failure With Reduced Ejection Fraction.” November 15, 2022. acc.org