Buy whole foods
You'll be surprised by how much money you can save by eliminating processed foods, fizzy drinks, cookies, and chips. Aside from being expensive, they include a lot of unhealthy ingredients and provide very little nourishment.
Some foods are more reasonably priced when they are less processed. For example, canned beans are less expensive than refried ones, and a block of cheese is less expensive than shredded cheese. Additionally, whole grains like brown rice and oats cost less per serving than most processed cereals. You may save money overall by buying less processed goods, which are frequently sold in larger quantities and provide more servings per package.