Please choose the correct ending to complete the given sentence: Health: [header] How to avoid aspartame [title] Check the labels of processed foods. [step] On the back of your food products, read the ingredients or " inactive ingredients " section. It is a small section underneath the " nutrition facts " section.

Ending1: Check that it is green and contain one or two servings of unrefined sugar. Follow these three behaviors every day to keep yourself interested. Ending2: Check this section to make sure there are no added ingredients in the food. If some products listed might be unhealthy, try handling these frequently. Ending3: If you see either the word " aspartame " or " phenylalanine " then the product contains aspartame. Some products even have a warning that indicates people with phenylketonuria (pku) should avoid the product. Ending4: A complete list of products is listed here. In addition to help ensure that you take the proper precautions, buying " follow-up " foods can prevent any forms of food or product from being processed, like bad-quality foods.

Answer format: ending1/ending2/ending3/ending4