Sodium Intake for Seniors: How Much Per Day Over 60, 70 and 80
The Short Answer
1,500mg sodium a day as a target, under 2,300mg as a limit — for healthy adults in their 60s, 70s, 80s and 90s alike.
- 1,500mg sodium ≈ 3.8g salt ≈ 2/3 level teaspoon, from all food combined
- 2,300mg sodium ≈ 5.8g salt ≈ 1 level teaspoon
- With high blood pressure: the American Heart Association's ideal is 1,500mg or less
- With heart failure, kidney disease or on diuretics: your doctor's number replaces all of the above
Medical Disclaimer
These are population guidelines, not a prescription. Many older adults take medicines that change how the body handles sodium — diuretics ("water pills"), some antidepressants, blood pressure drugs, and others. If you take any regular medication or have heart, kidney or liver disease, ask your doctor what sodium level is right for you before cutting or adding salt.
Most people expect the recommended amount of sodium to fall with age. Since 2019 it has not: the US National Academies set one Adequate Intake for every adult from age 14 upward, and that includes people over 70. What does change with age is how sensitive blood pressure is to salt, how quickly the kidneys clear it, and how easily blood sodium can drop too low. Those three points shape the practical advice below.
Daily Sodium Intake for Seniors: Chart
| Age | Target (AI) | Limit (CDRR) | With high blood pressure | Salt equivalent / teaspoons |
|---|---|---|---|---|
| 60s | 1,500mg | 2,300mg | 1,500mg or less | 3.8g (~2/3 tsp) to 5.8g (~1 tsp) |
| 70s | 1,500mg | 2,300mg | 1,500mg or less | 3.8g (~2/3 tsp) to 5.8g (~1 tsp) |
| 80s | 1,500mg | 2,300mg | 1,500mg or less | 3.8g (~2/3 tsp) to 5.8g (~1 tsp) |
| 90+ | 1,500mg | 2,300mg | 1,500mg or less | 3.8g (~2/3 tsp) to 5.8g (~1 tsp) |
The figures are for total sodium from all sources, not just the salt shaker, and they are the same for men and women. Other bodies are close: the WHO advises under 2,000mg sodium (5g salt) a day, and the UK NHS sets a maximum of 6g salt (about 2,360mg sodium). To convert, multiply sodium by 2.54 to get salt, or use the salt to sodium calculator. The full adult picture is in the sodium RDA guide, and the separate pages on sodium for women and sodium for men cover the same numbers by sex.
Why the Official Number Did Not Drop With Age
Older charts — including many still circulating online and in printed leaflets — show 1,300mg a day for ages 51-70 and 1,200mg for 71 and over. Those were the 2004 Dietary Reference Intakes. In 2019 the National Academies reviewed the evidence again and found it did not support a lower requirement in older age. The age-reduced values were retired and replaced with a single 1,500mg Adequate Intake for all adults.
The 2019 update made a second change. The old Tolerable Upper Intake Level of 2,300mg was dropped, and 2,300mg became the Chronic Disease Risk Reduction intake (CDRR): the level above which cutting back is expected to lower the risk of high blood pressure and cardiovascular disease. In practice the number did not move; only its label did. If a chart you are reading gives 1,200mg for over-70s, it is out of date rather than wrong for you specifically. Our sodium by age page covers the younger age groups.
None of this means age is irrelevant. Kidney filtration (GFR) declines gradually with age, so an older kidney clears a large sodium load more slowly, and blood pressure becomes more salt-sensitive with each decade. Those facts are why staying under 2,300mg matters more at 80 than at 30 — not why the target itself is lower.
Hyponatremia: When Sodium Gets Too Low
Hyponatremia — blood sodium below the normal range — is the most common electrolyte disorder in adults over 65. It is usually not caused by diet alone, but diet can tip the balance. The usual contributors are:
- Thiazide diuretics, a very common blood pressure medicine
- SSRIs and some other antidepressants
- Low intake plus high fluid — for example, a small appetite, a strict low-salt diet, and drinking large amounts of water or tea
Confusion or a sudden change in thinking, memory or alertness
Falls and unsteadiness on the feet
Fatigue, weakness and low energy
Headache, nausea or loss of appetite
High Blood Pressure in Seniors
High blood pressure affects the majority of adults over 65, so for most seniors the relevant number is the American Heart Association's: an ideal of 1,500mg sodium a day or less, and no more than 2,300mg. Because blood pressure becomes more salt-sensitive with age, cutting sodium tends to lower readings more in older adults than in younger ones. A practical first step for someone eating 3,400mg a day is simply getting under 2,300mg; further reduction toward 1,500mg brings additional benefit. See salt and blood pressure and is salt bad for blood pressure? for the detail.
Heart Failure and Kidney Disease
With heart failure or chronic kidney disease, the doctor sets the target and it overrides the chart. Sodium affects fluid build-up, swelling and breathlessness in heart failure, and the kidneys' ability to excrete it in kidney disease, so the right number depends on the stage of disease, the medicines involved and blood test results. Salt substitutes deserve a mention here: many replace sodium with potassium, which can be dangerous with kidney disease or with some heart and blood pressure drugs. Check with the doctor or pharmacist before using one.
Night-Time Leg Cramps and Salt
Night-time leg cramps are common in older adults, and adding salt is a frequent piece of folk advice. Sodium is rarely the cause. Cramps are more often linked to muscle fatigue, long periods of sitting, nerve or circulation problems, or medications — including some diuretics and statins. Adding salt does not reliably help and can raise blood pressure or worsen fluid retention.
For a 77-year-old man with cramps at night, the sensible step is not to self-dose salt but to mention the cramps to his doctor, who can review his medicines and, if needed, check blood electrolytes. Gentle calf stretching before bed is a reasonable thing to try meanwhile.
Appetite Loss and Eating Too Little
Appetite often falls with age, and a person eating small meals may take in well under 1,500mg without trying. That is not a problem in itself for most people, but combined with a strict no-added-salt rule, a diuretic and plenty of fluid, it is one route to low blood sodium. If an older relative is eating very little, the priority is enough food and protein overall; aggressive salt restriction on top of a poor appetite is rarely necessary unless a doctor has asked for it.
Where Seniors' Sodium Comes From
Most sodium is already in food before it reaches the plate. The biggest sources are:
- Bread and rolls — a slice can carry 150-200mg, and it adds up across the day
- Soup — a bowl of canned soup can carry 800mg or more
- Deli meats, bacon, ham and sausage
- Restaurant and takeaway food — a single main course can exceed 1,500mg
- Cheese, sauces, stock cubes and ready meals
Reading Labels
- Check the sodium (mg) line per serving, and how many servings you actually eat.
- If the label lists salt (g) instead, multiply by 393 to get sodium in mg.
- On US labels, 5% Daily Value or less is low; 20% or more is high.
- "Reduced sodium" means 25% less than the usual version, not necessarily low.
- Swapping one canned soup or one deli sandwich a day often removes more sodium than giving up the salt shaker entirely.
Worked Examples
An 80-year-old woman, no heart or kidney disease
Her target is 1,500mg sodium a day, with 2,300mg as the limit — between 2/3 and 1 level teaspoon of salt in total. A typical day of toast, a canned soup lunch and a modest dinner can reach 2,000-2,500mg, mostly from the bread and soup. If she has high blood pressure, aiming for 1,500mg is reasonable. If she takes a thiazide diuretic, she should not cut much below her doctor's recommendation, because of the hyponatremia risk.
A 91-year-old man asking whether 4g of salt a day is OK
4g of salt contains about 1,570mg of sodium (4 × 393). That is close to the 1,500mg target and well under the 2,300mg limit, so for a healthy man it is within guidelines. If the 4g means only salt added at the table, the total will be higher once bread, cheese and other food are counted, so it is worth estimating the whole day. With heart failure, kidney disease or diuretics, his doctor should confirm the figure.
Frequently Asked Questions
How much sodium should a 70 or 75 year old have per day?
Aim for about 1,500mg of sodium a day and stay under 2,300mg. These are the same numbers that apply to all adults; the official target was not lowered for people in their 70s.
What is the daily sodium limit for women over 80?
For a healthy woman over 80, the target is 1,500mg of sodium a day with an upper reduction limit of 2,300mg, about one level teaspoon of salt in total from all food. If she has high blood pressure, 1,500mg is the usual goal. Heart failure, kidney disease or diuretic use means her doctor should set the number.
What is the sodium RDA for older people?
Sodium has no formal RDA. The equivalent is the Adequate Intake, which since 2019 is 1,500mg a day for every adult including those over 70. Older charts showing 1,300mg for ages 51-70 and 1,200mg for 71 and over use the retired 2004 values.
Is 4 grams of salt a day OK for a 91 year old man?
For a healthy man, yes. 4g of salt contains about 1,570mg of sodium, which is close to the 1,500mg target and well under the 2,300mg limit. If he has heart failure, kidney disease, or takes diuretics, his doctor should confirm the amount.
Will more salt stop night-time leg cramps in older adults?
Usually not. Low sodium is rarely the cause of night leg cramps in older people, and adding salt can raise blood pressure or worsen fluid retention. Cramps that are frequent or new deserve a doctor's review, including a check of medications and blood electrolytes.
What is the recommended sodium for a 78 year old woman with high blood pressure?
The American Heart Association recommends an ideal of 1,500mg of sodium a day for people with high blood pressure, and no more than 2,300mg. Her doctor may adjust this, especially if she takes a diuretic, which can push blood sodium too low.
The Bottom Line
Seniors should aim for about 1,500mg of sodium a day and stay under 2,300mg — the same as every other adult since the 2019 update. With high blood pressure, 1,500mg is the goal. But older adults also face a real risk of sodium falling too low, especially on diuretics or antidepressants, so the aim is moderation guided by a doctor, not cutting as far as possible.