Symptom Index
What's your body telling you?
Find the foods most commonly linked to how you feel — and learn what to do about it.
Digestive
- Constipation Infrequent, hard, or difficult-to-pass stools. Diet-related constipation is most often linked to insufficient fiber and water, dairy in sensitive individuals, and processed-food-heavy diets. →
- Diarrhea Loose or watery stools that occur more frequently than usual. Diet-related diarrhea is most often caused by carbohydrate malabsorption, food sensitivities, or gut irritation. →
- Nausea A feeling of sickness or queasiness in the stomach. Diet-related nausea can be linked to slow gastric emptying, vagal stimulation, reflux, or individual food sensitivities. →
- Reflux A burning sensation in the chest or throat caused by stomach acid moving upward. For many people, diet is one of the more useful levers to investigate, alongside meal timing and weight management. →
- Stomach Pain Abdominal cramping, burning, or aching. Diet-related stomach pain is most often linked to gut inflammation, fermentation of poorly absorbed carbohydrates, or food sensitivities. →
Neurological
- Dizziness A sensation of lightheadedness, unsteadiness, or spinning. Diet-related dizziness most often involves dehydration, blood-sugar instability, alcohol, caffeine, or histamine intolerance. →
- Focus Felt focus — anywhere from foggy to sharp — depends on stable blood sugar, gut health, hydration, omega-3 intake, and avoiding individual triggers. For persistent cognitive symptoms, see Brain Fog. →
- Headache Food-triggered headaches are often linked to histamine, tyramine, caffeine, alcohol, blood sugar swings, and dehydration — each with a distinct pattern. →
Energy
Mood
- Mood Overall mood is influenced by diet through several pathways: gut-brain signaling, blood sugar stability, systemic inflammation, and the building blocks for neurotransmitters like serotonin. →
- Social Social wellbeing — feeling connected vs. withdrawn — is shaped by diet indirectly: through mood, anxiety, energy, and the social-fabric effects of patterns like alcohol use. →
- Stress Felt stress is shaped by diet — particularly through cortisol regulation, blood sugar stability, and the gut's influence on the autonomic nervous system. →
Sleep
Respiratory
Skin
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