I’ve heard rumors that pineapple “melts fat.” Cue the eye roll. No fruit melts fat on its own. That’s straight-up magic thinking. But because pineapple is mostly water and fiber, it can help you feel full and satisfied—which means you’re less likely to raid the cookie jar. It’s a team player, not a wizard.
Pineapple Bad For You at Isaac Dadson blog
Comparing it to, say, a doughnut? That’s like comparing a chill hike to a mud wrestling match. Pineapple gives you nutrients; doughnut gives you a nap. The choice is clear for your waistline.
So, can pineapple ever be bad?
Sure, if you have a rare allergy or a sensitive stomach. Some people get canker sores from acidic foods. Others might feel a little heartburn. But that’s true of any fruit. Pineapple isn’t out to get you—it’s just being itself.
Also, if you eat it out of a can that’s swimming in syrup? Then yes, it’s bad for you—but that’s not the pineapple’s fault. Blame the sugar bath. Fresh or frozen is your best bet.