Please choose the correct ending to complete the given sentence: Health: [header] How to select an acidophilus supplement [title] Use gel capsules. [step] Gel caps are one of the most convenient and common form of supplements. They're easy to find in addition to being easy to swallow with a glass of water.

Ending1: They work as cheap as tablets, but some are sold as pill capsules. You can purchase gel caps at drug stores. Ending2: As a result, they're a good option for a lot of people. [substeps] Unless noted on the packaging, gel capsules may use animal products. Ending3: According to the fda, gel capsules are 500 mg tablets and they're adult-weight, meaning they don't contain any added sugar or fat. [substeps] Gel caps do not appear to have an added weight to making a full morning drink, but do meet all important guidelines. Ending4: Proper portion control is key to avoid crushing and empty acidophilus tablets, which are harmful to yourself or others. Most gel caps come wrapped in a thin liquid or pill bag.

Answer format: ending1/ending2/ending3/ending4