GLOSSARY

Stool contains water, residues and microbial and host material, not merely unabsorbed food.

Stool frequency, consistency and form provide different information interpreted against personal baseline. The Bristol scale classifies shapes from hard to watery without diagnosing every cause or microbiome health. Water, fiber, medicines, travel and training affect bowel patterns. Trends and accompanying symptoms guide athlete records rather than one universal number or compulsory bowel movements produced by a particular product. Persistent changes deserve assessment within the wider nutrition and clinical context.

Gut health includes absorption, bowel function, barrier performance and absence of concerning symptoms, not one organism or health score. Different communities can coexist with satisfactory function. Varied food, adequate energy and attention to recurring symptoms provide practical foundations. Athletes also need comfort during sessions and the ability to meet fueling needs, assessed over time with general health rather than replaced by a single microbiome number or supplement-driven target.

Bloating, diarrhea or fatigue does not identify a specific microbial cause. Record timing, food, portions, training, medicines and bowel patterns; a stool result without this history is insufficient. Severe pain, bleeding, fever or unintended weight loss needs assessment. The goal is cause identification and adequate nutrition, rather than adding several gut-health products for every symptom without evaluating response, persistence or alternative explanations.