As much respect as I have for triathletes, they aren't really representative. Food choices are incredibly important for athletes in weight class-limited sports

As much respect as I have for triathletes, they aren't really representative. Food choices are incredibly important for athletes in weight class-limited sports (eg wrestling) or where muscular hypertrophy is important (eg powerlifting). Gymnastics is another one. Believe me when I tell you that coaches have diet absolutely dialed in for many classes of athlete.