This blog post offers guidance for runners, especially vegans, on effective carb loading ahead of half or full marathons written by a plant-based dietitian and running coach. Carb loading involves increasing carbohydrate intake to boost race performance and recovery. It recommends consuming 8-11 grams of carbs per kilogram of body weight for a few days before the race, favoring lower-fiber carbs to avoid fullness. The author suggests various vegan-friendly carb sources, including certain cereals, graham crackers, and bars, while cautioning against non-vegan ingredients. Personalized guidance is available for planning carb loads.