How much fiber is in avocado?

Avocado gets talked about as a healthy fat, but it’s quietly a strong fiber food too. Half a medium avocado (68 g, a typical serving) carries about 4.6 g of fiber — roughly 16% of the 28 g Daily Value — and a whole one lands near 9 g, more fiber than most whole fruits. Per 100 g that’s 6.7 g of fiber. So while you reach for avocado for the monounsaturated fat, you’re getting a real fiber bonus in the same scoop.

The famously low net carbs

Here’s what makes avocado special on a low-carb plate: almost all of its carbohydrate is fiber. Half an avocado shows about 5.8 g of total carbs, but 4.6 g of that is fiber — leaving net carbs of only about 1 g. Fiber isn’t digested into blood sugar, so it comes off the total, and avocado has one of the widest total-to-net gaps of any food. That single fact is why avocado is a keto and low-carb staple: you get a rich, satisfying fat source that barely touches your carb budget, with a wall of fiber the macros almost cancel out.

Why that fiber matters beyond the carb count

The fiber in avocado is mostly insoluble, with some soluble fiber, and you don’t need to track the split — both types come along when you eat it. Paired with avocado’s fat, that fiber is a big reason half a fruit is so genuinely filling: fat and fiber together slow the meal down and keep you satisfied. For gut health, the insoluble share adds bulk and keeps things regular, while the soluble portion helps steady digestion. It’s an unusually well-rounded package for a fruit — heart-healthy fat, standout fiber, and net carbs low enough to fit almost any plan.

Avocado is a fat-and-fiber food, not a protein source — for that side of the picture, see protein in avocado. And whenever you’re tracking carbs, remember the number that counts is net, which avocado’s fiber pulls almost to zero.