Define Healthy

Define Healthy is a small, quiet dictionary of everyday health and nutrition terms written without medical jargon or market promises. Each entry offers a simple explanation, real-life context, and clear boundaries around what words actually mean.

New here? Every entry follows the same layout: a boxed one-line definition, a plain explanation, a section on how the word turns up in everyday life, the confusions it tends to cause and links to related words. Entries are grouped into four themes below, and the A–Z index lists every word with a one-line summary. Where a nutrient is involved, the wording stays within what official bodies have accepted (see the editorial standards), and personal questions are left to a qualified professional.

Browse by Theme

Food & nutrients

• Electrolytes
• Fiber
• Iron
• Legumes
• Magnesium
• Omega-3
• Protein
• Vitamin D
• Whole grains

All 9 words in Food & nutrients

Movement

• Active recovery
• Mobility
• NEAT
• Resistance training

All 4 words in Movement

Rest & recovery

• Caffeine
• Circadian rhythm
• Resting heart rate
• Sleep hygiene

All 4 words in Rest & recovery

Everyday habits

• Added sugar
• Gut health
• Hydration
• Meal timing
• Mindful eating
• Satiety
• Ultra-processed food

All 7 words in Everyday habits