Dietary sources of phytosterols include plant-based foods such as vegetable oils (e.g., corn oil, canola oil), nuts (e.g., almonds, walnuts), seeds (e.g., sunflower seeds), legumes (e.g., beans, peas), and whole grains (e.g., wheat germ, bran). Consuming a diet rich in these foods can help increase your intake of phytosterols.