Sulfur, Ammonia & Chemical Intolerance

This report may be useful if you experience any of these symptoms:

This report is about how your body handles two things that are useful in small amounts but toxic in excess - sulfur and ammonia. Sulfur comes from protein and certain foods; your body uses it to make glutathione and taurine, but the processing pathway also generates intermediates (sulfite and hydrogen sulfide) that are harmful if they build up. Ammonia is the waste product of breaking down protein - neurotoxic, so the liver runs the urea cycle to convert it into urea. When either pathway runs slow, people feel unwell from sulfur foods, sulfite preservatives, or high-protein meals - a real biochemical basis for what many call "chemical intolerance."

• Feeling unwell or foggy after sulfur-rich foods
• Reactions to garlic, onions, eggs, cruciferous vegetables, asparagus
• Reactions to sulfite preservatives in wine or dried fruit
• Headache, flushing, or wheezing from sulfite-containing foods
• Intolerance of NAC, glutathione, MSM, alpha-lipoic acid, or taurine
• Reactions to epsom salt baths
• "Multiple chemical sensitivity" - fragrances, cleaning products
• Brain fog or fatigue after high-protein meals
• Irritability or headache after protein-heavy supplements
• Symptoms worsening with fasting, illness, or intense exercise
• Nausea, poor appetite, or unexplained vomiting episodes
• Sleep disturbance or agitation that comes and goes
• Self-protective aversion to protein or meat
• Poor stress resilience (possible low taurine)
• Cardiovascular or eye-related concerns with low taurine
• Distinctive body or urine odor
• Elevated homocysteine on blood testing
• Reactions to MSG or other glutamate-rich foods
• Elevated AST or ALT without clear cause
• Feel meaningfully better with molybdenum or B6
• Vegetarian or vegan diet with stress-resilience or energy concerns
• Heart palpitations or irregular pulse
• Methylation issues alongside oxidative stress
• Family history of a urea cycle disorder

Answer the symptom questions below as honestly as you can. Combined with your DNA file, your answers help map which pathways are most worth your attention, and which support strategies give you the highest leverage.