Nutrition
Portion Threshold Food Intolerance
Portion threshold food intolerance sets symptom-free gram limits per food—avoiding unnecessary zero bans when small servings are tolerated.
Portion threshold food intolerance means symptoms appear only above a personal dose—two tablespoons onion may be fine while a garlic-heavy sauce is not. Thresholds shift with stress, sleep, and FODMAP stacking across the day.
All-or-nothing bans waste nutrition; graded reintroduction finds your gram ceiling. This differs from IgE allergy where trace amounts can matter for some people.
Common questions
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Does a small tolerated dose mean you should eat it daily?
Not required—knowing your ceiling helps flexible eating. Some people prefer avoidance of borderline foods before races; thresholds are tools, not mandates.
Related terms
Put Portion Threshold Food Intolerance into practice
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