MyFitnessPal isn't very accurate for tracking calories and nutrients in Canadian endurance athletes — it often gets protein wrong for men and overestimates calories and carbs for women, so it might...

Protein supplements might give athletes a small boost in endurance, especially when taken with carbs—but it could just be because they're eating more calories overall.

Instead of telling these players to eat more protein, nutritionists should focus on getting them to eat more carbs — especially on game days — because they’re not eating enough total calories.

Cronometer does a pretty good job tracking calories and key nutrients like carbs, fat, and protein for Canadian endurance athletes — its numbers are very close to the official nutrient database.

MyFitnessPal isn’t very reliable when it comes to tracking sodium and sugar — different people log the same foods differently, especially men, so it might not be good for studies or health advice.