5. CONCLUSION
Compared with healthy children, children with cancer exhibited a higher intake of daily calories, and thus had a higher intake of both macro- and micro-nutrients, probably attempting to compensate their compromised GI function affected by cancer and treatment. Positive associations were found between the intake of certain macronutrients (carbohydrates and fiber), micronutrients (beta-carotene and vitamin B6) and alpha-diversity. Future studies should confirm our findings in a larger sample and try to better understand the impact of gut microbial alterations on cancer treatment symptoms and toxicities.