For a product to be fat free, it must contain less than 0.5g of fat per serving. This is all very well if we eat the stated serving size of that food, say one cookie. But if we consume more than a serving of that food, it ceases to be fat free. All those fractions of a gram will count towards your daily fat intake. Remember, fat free doesn't mean calorie free.

How Much Fat Should We Eat?

• Total fat intake should be between 20 and 35 percent of total calories.
• Less than 10 percent of calories should come from saturated fats, such as those found in animal products (meat and full-fat dairy).
• Most fat should come from monounsaturated or polyunsaturated sources (for instance, fish, nuts, canola and olive oils and spreads.
• We should keep consumption of trans fats as low as possible
• We should consume less than 300mg of cholesterol a day
• We should consume no more than 6 teaspoons of oils a day