Low sodium classifications


Understanding Low Sodium Classifications: What They Really Mean


When it comes to maintaining heart health, reducing blood pressure, or managing kidney disease, sodium intake becomes a major dietary concern. But as you stroll through the grocery store aisles, you’ll notice a variety of labels like “low sodium,” “very low sodium,” or even “sodium-free.” What do these classifications really mean, and how can you use them to make informed choices?


Let’s break it down.


Why Sodium Matters


Sodium is an essential mineral that helps regulate fluids, muscle function, and nerve impulses. However, excessive sodium intake is linked to high blood pressure and an increased risk of heart disease and stroke. According to the FDA, the average American consumes about 3,400 mg of sodium per day—far above the recommended limit of 2,300 mg for healthy adults.


This is where low sodium classifications come into play.


FDA-Approved Sodium Classification

Here’s what those food labels actually mean:

1. Sodium-Free

  • Contains: Less than 5 mg of sodium per serving
  • What it means for you: Virtually no sodium. These are great for strict low-sodium diets.


2. Very Low Sodium

  • Contains: 35 mg of sodium or less per serving
  • What it means for you: Safe for people aiming to minimize sodium but not eliminate it completely.


3. Low Sodium

  • Contains: 140 mg of sodium or less per serving
  • What it means for you: A good choice for moderate sodium control. Can be included in daily meal planning with care.

4. Reduced Sodium

  • Contains: At least 25% less sodium than the regular version of the product
  • What it means for you: A comparative claim. While it may still contain a significant amount of sodium, it’s a better choice than the original version.


5. Light in Sodium (or Lightly Salted)

  • Contains: At least 50% less sodium than the regular product
  • What it means for you: Lighter on salt, but still may not be “low sodium” by strict dietary standards.


What to Watch Out For

Even “low sodium” products can add up over the course of a day, especially if you eat multiple servings or combine several packaged foods. Also, watch out for misleading terms like “healthy” or “natural”—these don’t always mean low sodium.

Pro tip: Always check the Nutrition Facts label for the actual milligrams (mg) of sodium per serving, and keep an eye on serving size—a common way sodium content sneaks past consumers.

Back to blog