Some serving sizes will increase and others will decrease because by law, the serving sizes must be based on the amounts of food and drink that people typically consume, not on how much they should consume. Recent food consumption data show that some serving sizes need to be revised. For example, the reference amount used to set a serving of ice cream was previously ½ cup and now is changing to â…” cup. The reference amount used to set a serving size of soda was previously 8 ounces and now is changing to 12 ounces. The reference amount for yogurt is decreasing from 8 ounces to 6 ounces. Nutrient information on the new label will be based on these updated serving sizes so it matches what people actually consume.