The Hidden Fiber Gap: What Your Plant Milk Isn't Telling You
Here's a number worth knowing: 95% of Americans don't get enough fiber.¹ The recommended daily intake is 22 to 34 grams per day, depending on age and sex.² Yet most people consume only 10 to 15 grams daily.³
That gap has real consequences, and your morning plant milk might be quietly making it worse.
What Gets Lost When Plant Milk Gets Made
When oats, almonds, or cashews go through commercial processing, the fiber that exists naturally in those ingredients gets stripped out. To hit that smooth, pourable consistency on grocery shelves, manufacturers run their blends through heavy filtration. A cup of store-bought oat milk typically delivers around 2 grams of fiber per cup⁴, and some brands less than that.
To be fair, homemade oat milk isn't dramatically higher in fiber on its own either. Fiber doesn't survive the straining process especially well regardless of who's doing the straining. The real difference is what happens to what's left behind. With store-bought milk, the fiber-rich solids get discarded somewhere in a factory. When you make your own with an Almond Cow, the leftover pulp is yours to use however you like! That pulp is where most of the fiber ends up, and it's usable. Beyond the pulp, making your own milk also means you choose what else goes into the batch, which is where the fiber story gets really interesting.
Why Fiber Is Having a Moment
Protein has owned the wellness conversation for years. Fiber is starting to catch up, and the research behind it is worth paying attention to.
Gut health: Soluble fiber feeds the beneficial bacteria in your microbiome. Those bacteria are increasingly linked to digestion, immune function, and even mood regulation.⁶
Blood sugar: Fiber slows how quickly sugar enters the bloodstream, which helps prevent the mid-morning crash that sends most people reaching for a second cup of coffee.
Staying full: Fiber adds bulk and slows digestion, which means you stay satisfied longer after breakfast. This is backed by consistent research, not just wellness marketing.⁷
Long-term health: Higher fiber intake is linked to lower risk of heart disease, type 2 diabetes, and certain cancers. The USDA flags low fiber intake as a public health concern in its dietary guidelines.⁸
What's Actually in Your Batches
When you make milk with an Almond Cow, most of the fiber in your ingredients makes it into your glass, and what doesn’t ends up in the pulp which can be eaten on its own or used as an ingredient in a variety of recipes. Here's a quick breakdown by ingredient:
Oats
Oats are the most fiber-dense base most people use. A half-cup of rolled oats packs nearly 4 grams of dietary fiber, with a meaningful portion being beta-glucan, a soluble fiber linked to lower LDL cholesterol and better blood sugar control.⁵ The FDA actually recommends at least 3 grams of beta-glucan daily for cardiovascular benefit.⁹
The catch with commercial oat milk: the filtering process removes a significant portion of that beta-glucan before it reaches your cup.⁴
Try the Almond Cow basic oat milk recipe to start, or check out the Ultimate Guide to Homemade Oat Milk for tips on texture and sweetness.
Good to know: Whole grain rolled oats give you more fiber and a creamier result than instant. Soak them for a few hours before blending if you want the smoothest pour.
Almonds
Raw almonds with skins contain about 3.5 grams of fiber per ounce. The skin is where much of that fiber lives. Most commercial almond milks are made with blanched almonds and then filtered, which removes most of the fiber. When you make your own with skin-on raw almonds, that fiber actually gets into your blend.
And the leftover pulp is not an afterthought. It's packed with what didn't make it into your milk. Use it in overnight oats, muffins, or granola bars.
The Almond Cow almond milk guide has a solid breakdown of how to make the most of the whole ingredient, including how to freeze pulp for smoothies.
Good to know: Soaking almonds overnight softens the skin and makes more of the nutrients available when blended.
Cashews
Cashews are lower in fiber than oats or almonds, around 1 gram per ounce, but they earn their spot for a different reason. The creamy base they create is ideal for blending in higher-fiber add-ins like pistachios or flaxseed without wrecking the texture.
Think of cashews as the blank canvas. The cashew milk recipe on Almond Cow's site is a good starting point, and the Oat-Almond blend is worth trying if you want the fiber of oats with the creaminess of a nut base.
Four Ways to Close the Gap Starting This Week
You don't need to overhaul your routine. Small additions to your existing batches make a real difference.
1. Swap rolled oats for whole grain oats. They're less processed, pack more fiber, and you can fit more into the filter basket per batch.
2. Blend in ground flaxseed. One tablespoon adds around 2 grams of fiber and a dose of omega-3s. Use it in any base.
3. Don't toss the pulp. Oat and almond pulp contain the fiber that stayed behind during straining. Almond Cow has a whole pulp recipe section with granola, cookies, and more that put it to good use.
4. Build a fiber-forward smoothie. Use your fresh batch milk as the base, then add a frozen banana, a handful of spinach, and a tablespoon of almond butter (or leftover pulp). You're looking at 6 to 8 grams of fiber before your day has really started.
A Simple Starting Point
Start with the batch: Make a round of Almond Cow oat milk using whole grain oats. Add a tablespoon of flax seeds to the filter basket before running the machine. That one addition bumps up your fiber without changing the flavor.
Then use it in a smoothie: Almond Cow's Green Smoothie with Almond Pulp Cubes is the move here. It uses your fresh almond milk as the base, plus frozen almond pulp cubes, spinach, mango, hemp seeds, and flaxseed. It pulls double duty: you're getting fiber from the milk, from the pulp, and from the seeds all in one glass. Estimated fiber per serving: 8 to 10 grams, and that's before lunch.
If you'd rather start warm, our Oat-Cashew Honey Latte is a quick option that uses both oat and cashew milk together. Not high in fiber on its own, but it pairs well with a fiber-rich breakfast on the side.
Want to put the pulp to work beyond the smoothie? The Berry Smoothie Bowl with Almond Pulp and Almond Coconut Granola are both solid options that turn what most people throw away into something actually useful.
The Point
The fiber gap is real, but it's also one of the more fixable nutrition problems out there. Store-bought plant milk is convenient, but it's been processed to the point where the fiber story just doesn't hold up. What you make at home is different.
Your Almond Cow isn't just a cleaner, more sustainable choice. With the right ingredients and a few easy additions, it's a genuinely more nutritious one too.
Start with the Almond Cow oat milk recipe and try adding a tablespoon of chia seeds on your next batch.
[1] Medical News Today, How much fiber per day (citing 2025 research: over 90% of Americans fall short of daily fiber intake)
[2] USDA Dietary Guidelines for Americans 2020-2025, via Tufts University
[3] Harvard Health Publishing, Should I be eating more fiber?
[4] American Heart Association, Take a fresh look at oatmeal (commercial oat milk commonly provides 2 grams of fiber per cup, with small beta-glucan content)
[5] American Heart Association, Take a fresh look at oatmeal (half-cup cooked oatmeal = nearly 4 grams dietary fiber, rich in beta-glucan)
[6] USDA Economic Research Service, Dietary fiber intake and public health
[7] The Nutrition Insider, How Much Fiber Per Day Is Recommended?
[8] USDA Dietary Guidelines for Americans 2020-2025, via USDA blog
[9] FDA daily beta-glucan recommendation, cited in NCBI / PubMed study on beta-glucan in oats