Red snow: is it safe to eat? A pilot study.

摘要: The objective of this study was to determine if the ingestion snow contaminated with Chlamydomonas nivalis causes diarrhea. design a single-blind crossover. Subjects were seven healthy volunteers, aged 24–56 who ingested 500g C. . Outcome measured by stool and diarrhea frequency. No differences in or frequency noted between treatment placebo groups. conclusion is that pilot study, there no evidence supporting concern "red snow"