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How many mg is considered low sodium for a healthy diet?

4 min read

According to the U.S. Food and Drug Administration (FDA), a food product labeled "low sodium" must contain 140 mg of sodium or less per serving. This guideline applies specifically to single servings and helps consumers quickly identify products that meet this standard, which is different from overall daily intake recommendations.

Quick Summary

The FDA defines a packaged food as 'low sodium' if it contains 140 mg or less per serving. Broader daily limits from health organizations recommend less than 2,300 mg daily for most adults, with an ideal limit of 1,500 mg.

Key Points

  • FDA Food Label: 140 mg or less per serving is considered 'low sodium' on a food package.

  • Ideal Daily Target: The American Heart Association (AHA) recommends an ideal limit of 1,500 mg per day for most adults.

  • Upper Daily Limit: The AHA suggests a maximum daily intake of 2,300 mg, although a lower amount is better.

  • Processed Food Is a Major Source: Most of the sodium people consume comes from packaged, prepared, and restaurant foods, not the salt shaker.

  • Check the %DV: A product with 5% Daily Value or less of sodium is low, while 20% or more is considered high.

  • Focus on Fresh Foods: Cooking with fresh, unprocessed ingredients is the best way to control and reduce your total sodium intake.

In This Article

Understanding 'Low Sodium' in Context

When asking, "How many mg is considered low sodium?" it is crucial to distinguish between the nutritional claims on a food package and the recommended daily intake for a healthy adult. While an FDA-regulated food label provides a clear, serving-specific definition, reputable health organizations offer broader daily targets based on overall health. Making this distinction is the first step toward effectively managing your sodium consumption.

Food Label Claims: FDA Definitions

The FDA regulates specific terms that food manufacturers can use to market their products. These definitions are per serving, so it is vital to check the serving size before making assumptions about an entire package.

  • Sodium-Free or Salt-Free: Contains less than 5 mg of sodium per serving.
  • Very Low Sodium: Contains 35 mg of sodium or less per serving.
  • Low Sodium: Contains 140 mg of sodium or less per serving.
  • Reduced (or Less) Sodium: Must contain at least 25% less sodium than the regular version of the product.
  • Light in Sodium: Contains at least 50% less sodium per serving than the regular product.

Daily Intake Recommendations from Health Experts

While food labels are useful, health authorities provide guidelines for total daily consumption to support overall wellness. These figures help you contextualize individual products within your entire dietary pattern.

  • American Heart Association (AHA): Recommends no more than 2,300 mg a day for most adults, with an ideal limit of no more than 1,500 mg per day.
  • World Health Organization (WHO): Recommends less than 2,000 mg per day, which is equivalent to less than 5 grams of salt.
  • Dietary Guidelines for Americans: Recommends adults limit sodium intake to less than 2,300 mg per day.

The Difference Between 'Low Sodium' and 'Reduced Sodium'

A common point of confusion for shoppers is the difference between a product labeled "low sodium" and one labeled "reduced sodium." The table below clarifies these distinctions, which can greatly impact your total sodium intake.

Feature Low Sodium Reduced Sodium
Definition Contains 140 mg or less of sodium per serving, based on FDA standards. Contains at least 25% less sodium than the original, regular version of the product.
Reference Refers to an absolute, fixed value per serving. Refers to a relative reduction compared to the original version of the product.
Sodium Level Guarantees a specific, low amount of sodium per serving. Can still be high in sodium if the original product was very high in sodium. For example, a 1,000 mg soup reduced by 25% would still contain 750 mg of sodium per serving.
Key Takeaway A safe choice for managing sodium intake, as it adheres to a strict milligram limit. Requires checking the nutrition label for the actual sodium content to ensure it fits your dietary needs.

Practical Strategies for a Low Sodium Diet

Moving toward a lower sodium diet involves more than just selecting products with a "low sodium" label. Over 70% of the sodium consumed by Americans comes from processed and restaurant foods, not the salt shaker. Adopting new habits is key to long-term success.

Read the Labels

  • Check Serving Size: Pay close attention to the serving size listed on the Nutrition Facts label. The sodium content is calculated for a single serving, not the entire package.
  • Use the % Daily Value (%DV): A quick way to gauge sodium content is to look at the %DV. A food with 5% DV or less of sodium per serving is considered low, while 20% or more is considered high.

Choose Fresh, Unprocessed Foods

  • Cook at Home: Preparing your own meals gives you complete control over the amount of salt you use. Limiting packaged mixes, ready-made pasta, and sauces is an effective strategy.
  • Prioritize Whole Foods: Opt for fresh or frozen vegetables without added sauces, fresh meats, and homemade broths instead of canned or processed versions.

Flavor Without the Salt

  • Herbs and Spices: Experiment with a variety of spices, herbs, garlic, ginger, and citrus juice to enhance flavor naturally. Remove the salt shaker from your table to reduce temptation.
  • Rinse Canned Foods: If you use canned beans or tuna, rinsing them with water can remove some of the added sodium.

Mindful Dining Out

  • Ask for Customization: When ordering at a restaurant, request that your meal be prepared with no added salt. Ask for sauces and salad dressings on the side to control the amount you consume.

Conclusion

Understanding how many mg is considered low sodium depends on whether you are looking at a specific product or your overall daily diet. For individual servings, the FDA standard of 140 mg or less provides a reliable benchmark. For total daily intake, health organizations like the AHA recommend striving for 1,500 mg for most adults, with an upper limit of 2,300 mg. By reading labels carefully, cooking more at home, and being mindful when dining out, you can significantly reduce your sodium intake and support your long-term health.

For more information on dietary sodium recommendations and the DASH eating plan, you can refer to authoritative sources like the U.S. Food and Drug Administration website.

Frequently Asked Questions

Most healthy adults should aim for less than 2,300 mg of sodium per day, with an ideal limit of 1,500 mg, according to the American Heart Association.

A food product labeled as 'low sodium' contains 140 mg of sodium or less per serving, based on standards set by the U.S. Food and Drug Administration (FDA).

'Reduced sodium' means the product has at least 25% less sodium than its original version, but it might not be a 'low sodium' food. You must still check the nutrition label for the actual sodium content.

On the Nutrition Facts label, look for the % Daily Value (%DV) for sodium. A product with 5% DV or less per serving is considered low sodium, while 20% or more is considered high.

No, sea salt has a similar sodium content to table salt. The UCSF Health guidelines state that sea salt is not better than regular table salt for a low sodium diet.

To lower your intake, cook more at home using fresh ingredients, season with herbs and spices instead of salt, rinse canned foods, and be mindful of sodium content when dining out by asking for meals to be prepared without added salt.

The human body requires a very small amount of sodium to function correctly, with the minimum daily requirement being around 500 mg per day.

References

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Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.