Am I the only one who feels this way?

Whenever you bring up most people's unhealthy eating habits, they become uneasy and defensive.

The other day I was telling a friend about the recent research I've read on and which states that fructose triggers the brain's reward pathways but not its satiety mechanisms, which is why upon ingesting some you still feel hungry and want to eat more.

And she answered that 'everything in moderation is fine' and then proceeded to basically ignore what I'd just talked about.