While olive oil contains vitamin E and other beneficial nutrients, it is important not to overdo it, as oil is a calorie dense food. For example, 1 tablespoon of oil contains about the same number of calories found in two apples. The U.S. Department of Agriculture notes that many Americans consume enough oils via foods such as nuts, fish, cooking oil and salad dressing. The daily recommended intake of oil varies and is based on age, sex and physical activity. As a general guideline, adult women should not consume more than 5 to 6 teaspoons of oil per day, and men should limit their intake to 6 to 7 teaspoons.