In most cases, primary food production occurs in a process called photosynthesis, which is powered by sunlight. In a few environments, primary production happens though a process called chemosynthesis, which runs on chemical energy. Together, photosynthesis and chemosynthesis fuel all life on Earth.
Eat 5 â 7 servings of meat and beans per day. This depends on the total number of calories you consume in a day. 1  If you consume 1600 â 1800 calories, eat 5 servings per day. 2  If you consume 2000 calories, eat 5 Â½ servings per day. 3  If you consume 2200 calories, eat 6 servings per day. 4  If you consume 2400 â 2600 calories, eat 6 Â½ servings per day.
You should consume at least 2.5 to 6.5 cups of fresh vegetables every day. Also, make sure you eat 4-5 different types of vegetables. The more variety and colors of vegetables you include in your diet, the more extensive the benefits to your health will be. Also, include seasonal vegetables in your diet. Some vegetables are only available in certain areas of the world at certain times of the year.