If you’re wondering if flax seeds are a good source of fiber, this article has you covered. If you keep reading you will learn everything you should know about flax seeds as a fiber source, and more!
- First off, we will start by giving you the exact fiber count in flax seeds, as well as their number of calories.
- Then we will compare them with other similar foods based on the fiber count, such as chia seeds.
- Finally, we will give you the exact fiber count in flax seeds in various quantities.
Alright, time to start!
Quick Answer: Are flax seeds a good source of fiber? One tablespoon of flax seeds has 2.9 grams of fiber and 56.1 calories. This makes them a really good source of fiber as they provide you with 5.2 grams of fiber for every 100 calories of flax seeds you eat.
Still, you shouldn’t go overboard with flax seeds and should probably stick to eating just two tablespoons every day. This will provide you with almost 6 grams of fiber, which is a decent amount for that low number of calories.
Of course, make sure to add other foods to your diet to reach the recommended amount of fiber every day, which is 30 grams. To get 30 grams of fiber from flax seeds alone, you would need to eat ten tablespoons. While that might not be a problem, and it is not that many calories (560), we still recommend not doing that.
There are other foods you can eat that will give you the rest of your fiber, and with flax seeds, you should stick to two tablespoons daily.
Now, let’s see how they compare to other similar foods.
Comparing Fiber In Flax Seeds To Similar Foods
Now that we learned that one tablespoon of flax seeds has 2.9 grams of fiber and 56.1 calories (5.2 grams of fiber per 100 calories), let’s see how they compare to other similar foods:
- A tablespoon of chia seeds contains 3.4 grams of fiber and 48.6 calories. They are a better pick than flax seeds, but not by too much. (7 grams of fiber per 100 calories)
- A cup of almonds has 16.2 grams of fiber and 750 calories. They are far worse than flax seeds when it comes to fiber. (2.16 grams of fiber per 100 calories)
- Cashews have 4.3 grams of fiber and 718.9 calories per cup. Cashews are not a good source of fiber and are much worse than flax seeds. (0.6 grams of fiber per 100 calories)
- A cup of macadamia nuts has 11.5 grams of fiber and 962.1 calories. Macadamia nuts are also a worse source of fiber than flax seeds. (1.2 grams of fiber per 100 calories)
- A cup of lentils has 11.6 grams of fiber and 229.7 calories. Lentils are practically the same as flax seeds as a fiber source. (5 grams of fiber per 100 calories)
- Soy nuts have 21.4 grams of fiber and 464.3 calories per 100 grams. They are also quite similar to flax seeds, and only marginally worse. (4.6 grams of fiber per 100 calories)
How Much Fiber Flax Seeds Contain By Quantity
- 1 tablespoon of flax seeds has 2.9 grams of fiber and 56.1 calories.
- 1 cup of flax seeds has 45.9 grams of fiber and 897.1 calories.
- Flax seeds have 27.3 grams of fiber and 534 calories per 100 grams.
- Flax seeds have 7.7 grams of fiber and 151.4 calories per oz.
Wrap Up
Flax seeds are a good source of fiber. Not much more you can say about them. By eating only two tablespoons of flax seeds, you will be getting 6 grams of fiber. This is one-fifth of the recommended daily amount, which is great. Try not to go overboard with flax seeds and eat more than this though, as it can cause digestive problems. Besides, there are plenty of other foods you can eat that will provide you with the remaining 24 grams of fiber!

Hey, I’m Joey. I’ve been cooking since I was a little kid and love everything about it. You can find my writing about food, kitchen appliances (such as blenders) and much more. Thanks for stopping by!