By Lew Kizer — 2026-10-17 — Health & Nutrition
The short answer
The FDA published a final rule on October 13, 2026 allowing manufacturers to use salt substitutes to lower sodium in standardized foods that list salt as an ingredient. It affects 139 standards of identity (80 amended directly and 59 by cross-reference) and takes effect December 14, 2026. Using substitutes is optional, and the rule does not approve any new food additive.
Key facts
- Published in the Federal Register on Oct. 13, 2026 (Docket FDA-2022-N-2226).
- Effective date: Dec. 14, 2026. Objections on dairy standards are due Nov. 12, 2026.
- Covers 139 standards of identity: 80 amended directly, 59 that cross-reference them.
- Adds a general definition of “salt substitute” rather than naming specific ingredients.
- Optional for manufacturers; it creates no new requirement or cost for companies that do not use it.
- Kidney-health groups have previously raised concerns about added potassium in salt substitutes.
KINGSPORT, Tenn., Oct. 17, 2026 — Some of the most familiar foods in the grocery store have recipes written into federal law. Those “standards of identity” have long required ordinary salt. A new FDA rule changes that.
On October 13, the FDA published a final rule that lets manufacturers use salt substitutes to reduce sodium in standardized foods that list salt as a required or optional ingredient.
What the rule does
The rule amends 80 standards directly, and 59 more are affected because they cross-reference those standards, for 139 in total. Instead of naming approved substitutes, it adds a general definition of “salt substitute” to the regulations. It also updates referenced testing methods and makes technical corrections.
It takes effect December 14, 2026. The FDA says it creates no requirements or costs for companies that keep using regular salt, and it does not authorize any new food additive; those still need their own approval.
Why sodium is the target
Federal dietary guidance recommends no more than 2,300 mg of sodium a day for people 14 and older. CDC data summarized in a 2016 MMWR report found that about 89% of U.S. adults exceeded that amount. Because so much sodium arrives already in food, reformulation lets people eat less of it without changing every habit.
The potassium question
Many salt substitutes rely on potassium chloride. When the rule was proposed in 2023, the National Kidney Foundation and other groups warned that “hidden potassium” could harm people with chronic kidney disease, many of whom do not know they have it, and asked for clear labeling. If you have kidney disease, heart rhythm concerns or take medicines that raise potassium, read ingredient lists closely and talk with your clinician.
What to do now
Compare the sodium on the Nutrition Facts panel rather than assuming a familiar product is unchanged. Our heart-healthy meals page explains how we label meals, and our new guide to lower-sodium eating walks through label reading step by step.
“Most meal preps take fifteen minutes. Ours takes eighteen hours.” — Lew Kizer, Founder, SmashMeals
Cooking in our own kitchen puts seasoning decisions with the cook instead of a factory. See this week's meals and their posted nutrition.
Commentary, not medical advice
The SmashMeals perspective
Most sodium in the American diet comes from packaged and restaurant food, not the salt shaker, so reformulation matters. The trade-off is that some substitutes add potassium, which is not right for everyone. When we cook, we season in our own kitchen, and the nutrition we post for each meal is the number to check. If you have kidney disease or take medicines that affect potassium, ask your care team before using salt substitutes.
Frequently asked questions
When does the FDA salt substitute rule take effect?
December 14, 2026. Objections and hearing requests on the dairy standards are due November 12, 2026.
Will foods with salt substitutes say so on the label?
Ingredients must still be listed, so a substitute such as potassium chloride would appear in the ingredient list. Check the ingredient list and the sodium and potassium values on the Nutrition Facts panel.
Are salt substitutes safe for everyone?
Not necessarily. Many substitutes contain potassium. People with chronic kidney disease or who take certain medicines may need to limit potassium. Ask your clinician or pharmacist.
Sources and credits
Follow the original sources for context and verification. A reference is not an endorsement of SmashMeals.
- Use of Salt Substitutes To Reduce the Sodium Content in Standardized Foods (final rule) (opens in a new tab)
Federal Register / FDA
Why it matters: The rule itself, with scope, dates and definitions.
- Patient advocates warn FDA proposal on salt could harm people with kidney disease (opens in a new tab)
STAT
Why it matters: Explains the potassium concerns raised when the rule was proposed.
- Prevalence of excess sodium intake in the United States (summary) (opens in a new tab)
AJMC summarizing CDC MMWR
Why it matters: Background: most Americans exceed the 2,300 mg daily guideline.