A new Texas law has changed how nearly 900,000 people in the Houston area shop for groceries, but weeks after taking effect, there are still major questions about whether it’s working. The policy, often called the “,” went into effect April 1. It limits what people on the Supplemental Nutrition Assistance Program (SNAP) can buy; candy and sugary drinks containing five or more grams added sugars, and artificial sweeteners are banned. But despite the name, it’s not a full sugar ban.