In the autumn triathletes start winding down, reducing the peak training and racing of the summer and traditionally tucking in to more stodge.
Throw Christmas in to that mix and the start of next season sees a frantic attempt at fast weight loss. That pattern goes on year after year, yo-yo dieting and not learning sustained healthy food habits. WInter is the time to achieve and stabilise a great healthy weight and fat percentage so that next season can be hit with fab body composition.
This fitnaturally article published in Triathlon Plus magazine a few years ago is still relevant and gives a few pointers to help you with your off-season nutrition.