There's little to no lactose in many dairy products. Notably, cheeses and yogurt have essentially none.

(I'm of northern European heritage and lactose intolerant)

What is fructose intolerance? Lactose intolerance is the lack of production of a certain enzyme (lactase) in adulthood, but I wasn't aware that there were humans that lacked the ability to metabolize fructose in the liver (which is what I would expect given the analogous name).