1: They are too high in carbohydrates.
One cup of raw carrots offers about 12g of carbs and 4g of fiber. It's low carb. For comparison, 1 cup of broccoli has about 10g of carbs and 5g of fiber (1) or 1 cup of bell pepper has about 9g of carbs.
2: They are good for eyesight.
Carrots are an excellent source of beta-carotene which is a precursor in the body to create vitamin A. Vitamin A is necessary for the production of visual pigments that allow our eyes to function normally. Vitamin A deficiency can cause vision problems, especially in low light conditions, and can even lead to night blindness and other serious eye conditions. When there is no vitamin A deficiency, there is no benefit to consuming more vitamin A for our vision (2).
References
1- Santé Canada. (2008). Nutrient Value of Some Common Foods. Retrouvé en ligne le 22 avril 2023 au https://www.canada.ca/content/dam/hc-sc/migration/hc-sc/fn-an/alt_formats/pdf/nutrition/fiche-nutri-data/nvscf-vnqau-eng.pdf
2- Sommer, A., & Vyas, K. S. (2012). A global clinical view on vitamin A and carotenoids. American Journal of Clinical Nutrition, 96(5), 1204S-1206S. doi: 10.3945/ajcn.112.034637