Salt & Health

Science-based information about salt's role in human health. Interactive tools, evidence-based guides, and medical considerations.

Medical Disclaimer: This information is educational only and not medical advice. Consult healthcare professionals for personal health decisions, especially regarding sodium intake, blood pressure, or medical conditions.

Essential Salt Facts

2,300mg Daily sodium limit (WHO/AHA)
40% Sodium content in salt
30% Adults salt-sensitive
500mg Minimum daily need

Interactive Tools

Sodium Calculator

Calculate exact sodium content from any salt type and amount. Compare against daily limits from WHO, AHA, and USDA guidelines.

Interactive Tool

RDA Guidelines

Recommended daily allowances by age, pregnancy status, and activity level. Compare international guidelines from major health organizations.

Reference Guide

Science & Physiology

Electrolyte Science

How sodium, potassium, chloride, and magnesium work together. Salt's role in hydration, nerve function, and muscle contraction.

Science Explainer

Salt & Blood Pressure

Evidence-based overview of sodium-sensitive vs sodium-resistant hypertension. When salt reduction matters and when it doesn't.

Medical Evidence

Medical Conditions

POTS & Salt

Why increased salt intake is often recommended for POTS patients. Electrolyte protocols and medical considerations.

Condition-Specific

Non-Edible Salts

Safety guide: Epsom salt, road salt, water softener salt, bath salts. Why they're dangerous to consume and chemical differences.

Safety Reference

Understanding Sodium in Your Diet

Salt (sodium chloride) is 40% sodium by weight. This means:

Key Health Considerations

Essential Functions

Sodium is crucial for maintaining fluid balance, transmitting nerve impulses, and muscle contraction. Complete elimination is dangerous.

Individual Variation

Salt sensitivity varies greatly. About 30% of people are salt-sensitive (blood pressure responds to sodium), while others show minimal response to dietary salt changes.

Hidden Sources

75% of dietary sodium comes from processed foods and restaurant meals, not the salt shaker. Bread, pizza, sandwiches, cold cuts, and soup are top contributors.

Special Populations

Athletes, outdoor workers, and people with certain medical conditions (like POTS or cystic fibrosis) may need more sodium than standard recommendations.