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Low-Sodium Diet for Seniors: How Much Salt, Where It Hides, and Easy Swaps

Not yet expert-reviewed · Last updated October 29, 2026

Low-Sodium Diet: A Practical Guide for Adults 55+

Key takeaways

Federal guidelines say teens and adults should eat less than 2,300 mg of sodium a day.[1][2] That is about 1 teaspoon of table salt.[2][3]
Americans eat far more. CDC puts the average at more than 3,300 mg a day;[2] FDA puts it at about 3,400 mg.[3]
More than 70% of the sodium we eat comes from packaged and prepared foods, not the salt shaker.[3]
On a Nutrition Facts label, 5% Daily Value or less of sodium is low, and 20% or more is high.[3]
Salt substitutes often contain potassium. They can be risky with kidney disease or certain medicines. Ask your doctor first.[4]
Related: The DASH diet
Related: Stroke symptoms (BE FAST)

Why sodium matters more as we age

CDC says too much sodium can raise your blood pressure and your risk for heart disease and stroke.[2] The DASH-Sodium trial in U.S. adults found that eating less sodium lowered blood pressure on both a typical American diet and the DASH diet, with the biggest drop when the two were combined.[5] See The DASH diet.

NHLBI's DASH plan notes that 1,500 mg a day lowers blood pressure even more than 2,300 mg.[6] Your doctor may give you a different target, especially if you have heart failure or kidney disease.[4]

Know the warning signs of a stroke.

Where the sodium is hiding

CDC lists the top sources of sodium for U.S. adults:[2]

Rank	Food (adults 18+)	Lower-sodium swap idea
1	Deli meat sandwiches	Home-roasted chicken or turkey, sliced; egg or bean salad
2	Soups	"Low sodium" canned soup, or homemade soup with no-salt-added broth
3	Pizza	Homemade on whole-wheat crust with less cheese, more vegetables
4	Poultry (packaged/processed)	Plain fresh or frozen chicken without added solution or seasoning
5	Savory snacks (chips, crackers, popcorn)	Unsalted nuts, air-popped popcorn, fresh fruit
6	Pasta mixed dishes	Plain pasta with no-salt-added tomatoes, garlic, olive oil
7	Breads, rolls, buns	Compare labels; brands vary
8	Cheese	Smaller portions; compare labels (some cheeses are lower)
9	Meat mixed dishes	Cook from scratch and season with herbs
10	Vegetables (packaged/processed)	Fresh, frozen without sauce, or "no salt added" canned

Ranking from CDC (NHANES 2021–2023 data).[2] Swap ideas are ours.

Some sodium also comes from ingredients like MSG, baking soda, and sodium nitrate.[2]

How to read a label for sodium

FDA's quick rule: 5% DV or less is low; 20% DV or more is high.[3] Also check the serving size: if you eat two servings, you get twice the sodium.[3]

What front-of-package words mean (FDA definitions):[3]

Label claim	What it means (per serving)
Salt/sodium-free	Less than 5 mg
Very low sodium	35 mg or less
Low sodium	140 mg or less
Reduced sodium	At least 25% less than the regular product
Light in sodium / lightly salted	At least 50% less than the regular product
No salt added / unsalted	No salt added during processing (the food may still contain some natural sodium)

Tip: "Reduced sodium" soup can still be high. Check the %DV, not just the claim.

Salt substitutes: helpful for some, risky for others

Many salt substitutes replace some sodium chloride with potassium chloride.

A large trial in rural China (non-US study), the Salt Substitute and Stroke Study, gave 20,995 adults (average age about 65) who had a past stroke, or were 60+ with high blood pressure, either regular salt or a substitute of 75% sodium chloride and 25% potassium chloride. Over an average follow-up of about 4.7 years, the substitute group had fewer strokes (rate ratio 0.86), fewer major heart events (0.87), and fewer deaths (0.88). Serious events blamed on high potassium were not significantly more common.[7]

That diet was very different from a typical U.S. diet, where most sodium comes from packaged and restaurant food, not home cooking.[2][3] So in the U.S., cutting processed food usually matters more than switching salt.

Be careful: NIDDK warns that many salt substitutes are high in potassium, and people with kidney disease may need to limit potassium. Check the label for "potassium chloride" and ask your health care provider.[4] Some heart and blood pressure medicines can also raise potassium; ask your doctor or pharmacist before using a salt substitute.

A 7-day lower-sodium sample menu

This is an example only. It has not been nutrient-analyzed. Pick low-sodium or no-salt-added versions.

Day	Breakfast	Lunch	Dinner
Mon	Oatmeal with cinnamon and blueberries	Homemade chicken and vegetable soup (no-salt-added broth)	Baked fish with lemon and dill, roasted potatoes, green beans
Tue	Plain yogurt with fruit and unsalted walnuts	Leftover soup, whole-grain toast	Turkey burger (no salt added), sweet potato, salad with oil and vinegar
Wed	Eggs with peppers and onions, fresh fruit	Salad with chickpeas (rinsed), cucumbers, tomatoes, olive oil	Chicken stir-fry with garlic, ginger, vegetables, brown rice (low-sodium sauce, small amount)
Thu	Shredded wheat with milk and banana	Leftover stir-fry	Bean and vegetable chili with no-salt-added beans and tomatoes
Fri	Whole-grain toast with peanut butter (unsalted or low-sodium)	Leftover chili	Baked salmon, brown rice, steamed broccoli with lemon
Sat	Veggie omelet, berries	Homemade tuna (low-sodium) salad with yogurt and herbs, on greens	Pasta with no-salt-added tomato sauce, garlic, and spinach
Sun	Oatmeal pancakes with fruit	Leftover pasta	Roast chicken with rosemary, carrots, and potatoes

Plan a low-sodium week with

Shopping list for a low-sodium kitchen

Fresh or frozen vegetables and fruit (no sauce, no added salt)
Dry beans and lentils, or no-salt-added canned (rinse them)
Fresh chicken, fish, eggs, and lean meat (check for "added solution" or "broth," which can mean added sodium)
Oats, brown rice, plain pasta, quinoa
No-salt-added canned tomatoes and broth
Unsalted nuts and seeds
Flavor: garlic, onion, lemons, limes, vinegar, black pepper, fresh and dried herbs, salt-free spice blends. NIA suggests herbs and citrus like lemon juice to cut sodium.[8]

Getting used to less salt

FDA says that as you cut back, your taste for salt lessens over time.[3] Start small: cook from scratch a few more nights a week, taste before salting, and leave the shaker off the table.

Eating out

Ask for sauces and dressings on the side.
Choose grilled or roasted foods over soups, deli sandwiches, and pizza, which are top sodium sources.[2]
Many chain restaurants post nutrition facts. Check sodium before you go.

Who should talk to a doctor first

Kidney disease: your sodium, potassium, and protein limits may be different. Medicare Part B covers medical nutrition therapy with a registered dietitian for kidney disease (and diabetes) with a doctor's referral.[4][9]
Heart failure, or if you take water pills or blood pressure pills: ask your care team before changing salt intake or using salt substitutes.
Low sodium in the blood (hyponatremia) or frequent dizziness: do not change your diet on your own.

FAQ

How much sodium should a senior have per day? The Dietary Guidelines for Americans, 2025–2030 say less than 2,300 mg a day for people 14 and older.[1] NHLBI notes 1,500 mg lowers blood pressure more.[6] Your doctor may set a different goal.

Is sea salt or pink salt lower in sodium? Not in a meaningful way. Sodium chloride is still the main ingredient. Compare labels.

Are salt substitutes safe? For some people, yes, but they often contain potassium. People with kidney disease or who take certain medicines should ask a doctor first.[4][7]

Does cooking without salt really help if most sodium is from packaged foods? Yes, but the bigger win is usually cutting back on packaged and restaurant food, where more than 70% of sodium comes from.[3]

Sources

U.S. Department of Health and Human Services; U.S. Department of Agriculture. Dietary Guidelines for Americans, 2025–2030. January 2026. https://cdn.realfood.gov/DGA.pdf. Accessed October 29, 2026.
Centers for Disease Control and Prevention. About Sodium and Health. CDC. Updated June 29, 2026. https://www.cdc.gov/salt/about/index.html. Accessed October 29, 2026.
U.S. Food and Drug Administration. Sodium in Your Diet. FDA. https://www.fda.gov/food/nutrition-education-resources-materials/sodium-your-diet. Accessed October 29, 2026.
National Institute of Diabetes and Digestive and Kidney Diseases. Healthy Eating for Adults with Chronic Kidney Disease. NIDDK, NIH. https://www.niddk.nih.gov/health-information/kidney-disease/chronic-kidney-disease-ckd/healthy-eating-adults-chronic-kidney-disease. Accessed October 29, 2026.
Sacks FM, Svetkey LP, Vollmer WM, et al. Effects on blood pressure of reduced dietary sodium and the Dietary Approaches to Stop Hypertension (DASH) diet. N Engl J Med. 2001;344(1):3-10. https://pubmed.ncbi.nlm.nih.gov/11136953/. Accessed October 29, 2026.
National Heart, Lung, and Blood Institute. DASH Eating Plan. NHLBI, NIH. Updated February 25, 2026. https://www.nhlbi.nih.gov/health/dash-eating-plan. Accessed October 29, 2026.
Neal B, Wu Y, Feng X, et al. Effect of salt substitution on cardiovascular events and death. N Engl J Med. 2021;385(12):1067-1077. (non-US study) https://pubmed.ncbi.nlm.nih.gov/34459569/. Accessed October 29, 2026.
National Institute on Aging. Healthy Meal Planning: Tips for Older Adults. NIA, NIH. https://www.nia.nih.gov/health/healthy-eating-nutrition-and-diet/healthy-meal-planning-tips-older-adults. Accessed October 29, 2026.
Medicare.gov. Medical nutrition therapy services. CMS. https://www.medicare.gov/coverage/medical-nutrition-therapy-services. Accessed October 29, 2026.

Not used: American Heart Association sodium page (blocked, HTTP 403 / bot check on October 29, 2026; not cited).

Disclaimer

This article is for general education only and is not medical, legal, or financial advice. Talk to your doctor, a licensed attorney, or a SHIP counselor (Medicare) about your situation. In an emergency, call 911.

If you take prescription medicines or have kidney disease, diabetes, or heart failure, follow your doctor's or registered dietitian's advice on sodium and potassium. Do not start a salt substitute or change medicines without asking.

Attribution

Portions of this page are adapted from "HowToLiveBetter" (高性价比人生指南) by eternity4719, https://github.com/eternity4719/HowToLiveBetter, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Changes: the idea of cutting salt and considering a lower-sodium salt (Chapter 02) adapted and rewritten for the U.S. context (not a direct translation); re-sourced to CDC, FDA, NHLBI, NIDDK, DGA 2025–2030, and NEJM trials; added U.S. label rules and a kidney/potassium safety caution.

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Last updated October 29, 2026