Are there any cheeses that should be avoided outright?
Yup! Fresh cheeses, and those with a lot of curds, tend to have the highest lactose percentages. Here are the main culprits:
Feta: Approx. 4.1% average lactose
Ricotta: 0.2-5.1% lactose range
Colby: 1.6-5.2% lactose range
American: 1.6-5.2% lactose range
Velveeta: Approx. 9.3% average lactose
American (pasteurized): 0-14.2% lactose range
