Sodium Intake Daily Limit 2026 | Salt Intake Health Standard
Quick Take
The FDA recommends no more than 2,300 milligrams (mg) of sodium per day — roughly one teaspoon of table salt. The AHA goes further, suggesting 1,500 mg per day for most adults, particularly those with hypertension or at risk for cardiovascular disease. The average American consumes about 3,400 mg daily, with 70% of that coming from processed and restaurant foods rather than the salt shaker.
Sodium is an essential nutrient. Your body needs it to maintain fluid balance, transmit nerve impulses, and contract muscles. But like so many things in nutrition, the difference between "necessary" and "excessive" is surprisingly small. The Institute of Medicine sets the minimum physiological requirement at just 500 mg per day — an amount most people could achieve without ever touching a salt shaker. The problem is what happens when consumption climbs far beyond that baseline, which it does for the vast majority of Americans.
Understanding your daily sodium limit requires knowing where the guidelines come from, recognizing that most dietary sodium hides in places you would never think to look, and understanding the relationship between chronic high sodium intake and cardiovascular health. Let us break down the official numbers and explore what a realistic sodium target looks like in practice.
To estimate your daily calorie needs and how sodium fits into your overall diet, use the BMR Calculator for a metabolism baseline and the Calorie Deficit Calculator for personalized targets.
Official Sodium Intake Guidelines: The Major Standards
Four key organizations have established formal sodium intake recommendations, and while their numbers differ slightly, they all point in the same direction: most people should be consuming significantly less sodium than they currently do.
FDA Daily Value (DV): 2,300 mg per Day
The FDA established 2,300 mg of sodium per day as the Daily Value for nutrition labeling purposes. This number appears on food packaging as "% Daily Value" and represents the maximum amount the FDA considers acceptable for healthy adults. In 2025, the FDA finalized its long-anticipated sodium reduction guidance for the food industry, setting targets for sodium reduction in processed and restaurant foods over the next decade. The agency's data shows that meeting the 2,300 mg target would require significant changes in the food supply, since 70% of dietary sodium comes from processed and prepared foods rather than home cooking.[FDA 2025]
American Heart Association: 1,500 mg per Day
The AHA recommends a more ambitious target of 1,500 mg per day for the majority of US adults. This includes all adults over age 50, African Americans, and anyone with hypertension, diabetes, or chronic kidney disease — groups that collectively represent more than 60% of the adult population. The AHA based this recommendation on a comprehensive review of clinical trials showing that reducing sodium intake to 1,500 mg was associated with the greatest reductions in blood pressure and cardiovascular disease risk.[AHA 2026]
WHO Global Recommendation: Under 2,000 mg per Day
The World Health Organization recommends that adults consume less than 2,000 mg of sodium per day — equivalent to about 5 grams of salt. This guideline is population-based and intended as a public health target for countries to work toward. The WHO notes that the relationship between sodium intake and cardiovascular disease risk is continuous — meaning that lower intake generally corresponds to lower risk, with no apparent threshold below which further reductions provide no benefit.
DASH Diet Standard: 2,300 mg or 1,500 mg
The Dietary Approaches to Stop Hypertension (DASH) trial, published in 1997, remains one of the most influential studies in nutrition science. Researchers found that a dietary pattern emphasizing fruits, vegetables, whole grains, lean proteins, and low-fat dairy — combined with reduced sodium intake — significantly lowered blood pressure. The DASH diet tested two sodium levels: 2,300 mg (the "standard" level) and 1,500 mg (the "lower" level). Both reduced blood pressure, with the 1,500 mg level producing the greatest effect. The DASH diet has since become the foundation for federal nutrition guidelines in the United States.[Appel et al. 1997]
Sodium vs. Salt: Understanding the Conversion
One of the most common sources of confusion is the relationship between sodium and salt. Table salt is approximately 40% sodium and 60% chloride by weight. To convert between the two:
| Sodium | Salt (Sodium Chloride) | Common Measurement |
|---|---|---|
| 500 mg sodium | 1.25 g salt | ~1/8 tsp |
| 1,000 mg sodium | 2.5 g salt | ~1/4 tsp |
| 1,500 mg sodium | 3.75 g salt | ~3/8 tsp |
| 2,000 mg sodium | 5 g salt | ~1/2 tsp |
| 2,300 mg sodium | 5.75 g salt | ~1 tsp |
| 3,400 mg sodium | 8.5 g salt | ~1.5 tsp |
To convert from salt to sodium: multiply the salt weight by 0.40 (or divide by 2.5). To convert from sodium to salt: multiply by 2.5. Nutrition labels list sodium content in milligrams, not salt, which is why a product labeled "low sodium" (140 mg or less per serving) contains only about 0.35 grams of salt.
Where Does Dietary Sodium Come From?
The sodium story is fundamentally different from the sugar story, because most sodium does not come from the salt shaker on your dining table. Data from NHANES and the CDC shows that approximately 70% of dietary sodium comes from processed foods and restaurant meals, with only about 10% added during home cooking or at the table. The remaining 20% occurs naturally in foods like dairy, meat, and vegetables.
The top sources of sodium in the American diet include:
- Breads and rolls (7%) — A single slice of commercial bread can contain 150–250 mg of sodium
- Pizza (7%) — One slice of cheese pizza delivers 500–700 mg
- Soups (6%) — Canned soup is notoriously high in sodium; a single serving can exceed 1,000 mg
- Cold cuts and cured meats (5%) — Deli ham, turkey, and salami are sodium-dense
- Sandwiches and burgers (5%) — Fast food sandwiches often contain 1,000+ mg per item
- Cheese (4%) — Processed cheese products are particularly high
- Condiments (4%) — Soy sauce, ketchup, and salad dressings add significant hidden sodium
A classic example: a typical fast-food chicken sandwich with fries and a soft drink can easily contain 2,500–3,500 mg of sodium — exceeding the entire day's recommended limit in a single meal.
The Science: Sodium and Blood Pressure
The relationship between sodium intake and blood pressure is one of the most extensively studied topics in cardiovascular nutrition science. A 2023 systematic review and meta-analysis in Nature Medicine pooled data from more than 130 studies and found a clear linear association: for every 1,000 mg per day reduction in sodium intake, systolic blood pressure decreases by an average of 3.8 mmHg in individuals with hypertension and 2.5 mmHg in those with normal blood pressure.
The physiological mechanism is well understood. When sodium intake exceeds kidney excretory capacity, the body retains water to maintain osmotic balance. This increases blood volume, which raises blood pressure. Over time, chronic sodium overload leads to vascular stiffness, increased cardiac output, and persistent hypertension — all precursors to heart failure, stroke, and kidney disease.
Who Should Target 1,500 mg?
The AHA recommends the stricter 1,500 mg target for specific high-risk groups. If you fall into any of these categories, reducing to 1,500 mg per day may provide significant cardiovascular benefits:
| Population Group | Sodium Target | Rationale |
|---|---|---|
| Healthy adults under 50 | 2,300 mg | FDA Daily Value; population-level risk reduction |
| Adults 50+ | 1,500 mg | Increased hypertension and CVD risk with age |
| African Americans (all ages) | 1,500 mg | Higher prevalence of salt-sensitive hypertension |
| Hypertension / diabetes / CKD | 1,500 mg | Proven blood pressure and renal benefits |
| Heart failure patients | 1,500 mg | Reduces fluid retention and hospitalizations |
Practical Strategies for Reducing Sodium
Given that most dietary sodium comes from processed foods, the most effective reduction strategies are not about using less salt at the table — they are about changing what you buy and where you eat.
Cook from scratch more often. Home-cooked meals give you complete control over sodium content. When you prepare rice, pasta, and beans from dry forms instead of using instant or canned varieties, you can reduce sodium by 80–90%.
Learn to read labels strategically. Look for products with "low sodium" (140 mg or less per serving), "very low sodium" (35 mg or less), or "no salt added" on the packaging. Watch for serving sizes — a product might look low-sodium until you realize it contains 3 servings per container.
Rinse canned foods. Draining and rinsing canned beans, vegetables, and tuna can reduce sodium by 30–40%. This simple step is one of the easiest ways to cut hidden sodium without changing your diet dramatically.
Use herbs and spices instead of salt. Garlic, ginger, citrus, vinegar, and fresh herbs like basil, oregano, and thyme can add tremendous flavor without any sodium. Experiment with salt-free seasoning blends to find combinations you enjoy.