Fibermaxxing Curious? These Products Help You Add More Fiber Slowly

If your For You Page has recently informed you that fiber is the new protein, welcome to fibermaxxing. The trend is exactly what it sounds like, people intentionally loading up on fiber by eating more plants, prebiotic drinks, powders, and snacks, and dietitians are (mostly) cheering it on. Fiber deserves the hype. The only real problem with fibermaxxing is the maxxing part, because doubling your intake overnight is the fastest possible route to a gut that hates you.

And most of us could honestly do with a little more. Around 95% of Americans don't hit the recommended daily fiber intake, and the average adult manages only about 15 grams when the target is closer to 25 to 35 grams. The trick is going slowly with bumping up your intake. UCLA Health dietitian Dania Ansari explains that going "zero to 100" on fiber usually leads to gas, bloating, and sometimes constipation if you're not drinking enough water. Registered dietitian Tara Schmidt says the same in Mayo Clinic Press, where she recommends spreading the increase over weeks, not days.

Our picks below from the Stridekick Shop make it easier to add fiber a little at a time, including powders, drinks, snacks, and breakfasts. But before we dive in, big fiber jumps aren't the move for everyone. If you have IBS, Crohn's, ulcerative colitis, diverticulitis, or a history of bowel obstruction, check in with your provider before ramping up. Everyone else, start low, add water, and let your gut catch up.

Best Overall Fiber Powder: Supergut Foundational Daily Fiber

This product is ideal if you want one product that just handles it. Supergut's prebiotic fiber blend includes resistant starch from green bananas and oats, and Stridekick positions it as daily support for digestion, regularity, and the microbiome. Prebiotic fibers feed the good bacteria in your gut, which produce short-chain fatty acids linked to steadier blood sugar, cholesterol, and lower inflammation. Mix it into water, coffee, or a smoothie and get on with your day.

Shop the Supergut Foundational Daily Fiber | HSA/FSA Eligible

Best Soluble + Insoluble Fiber Blend: Fiber GDX by The 'Pause Life

This one is for the nerds who want to know exactly what type of fiber they're getting (respectfully). It combines soluble and insoluble fiber from multiple grains, which matters because soluble fiber forms a gel that slows digestion and helps regulate cholesterol and blood sugar, and insoluble fiber bulks up stool and keeps things moving. The label also tells you to start with a quarter scoop and build up.

Shop the Fiber GDX | HSA/FSA Eligible

Best Flavored Fiber Drink: Sunwink Digestion Limeade Fiber Powder

Stick packs, limeade flavor, none of the chalky supplement energy. This blend uses chicory root inulin, burdock, and tangerine peel, and Stridekick positions it for digestive health and regularity. Chicory root is a prebiotic, so if you already know inulin makes you extra gassy, ease into this one slowly (as in, half a stick for a few days before going full send).

Shop the Sunwink Digestion Limeade Fiber Powder | HSA/FSA Eligible

Best Grab-and-Go Fiber Snack: Supergut Prebiotic Bar

Snacks that quietly deliver fiber are basically fibermaxxing on easy mode. This bar uses the same resistant starch fiber found in Supergut's powder, packed into something you can throw in a gym bag or eat between meetings. Great for the days you know you won't see a vegetable until dinner.

Shop the Supergut Prebiotic Bar | HSA/FSA Eligible

Best Sensitive-Stomach Drink Mix: BelliWelli Daily Fiber Mix

If chicory and inulin make your gut throw a tantrum, this one is worth a try. It uses 4g of low-FODMAP acacia fiber with probiotics, collagen, and electrolytes, which is a much gentler starting point for anyone who bloats easily. HSA/FSA eligibility isn't clearly listed on the product page, so double-check before you plan on using benefits money.

Shop the BelliWelli Daily Fiber Mix

Best Soda Swap: OLIPOP Classic Grape Prebiotic Soda

Prebiotic sodas earned their TikTok fame for a reason. OLIPOP's Classic Grape can lists 9g of fiber and only 2g of sugar, with plant-based fiber, prebiotics, and botanicals doing the work. It's a fun way to sneak fiber into a movie night or swap out an afternoon soda (just don't count on it to replace actual food fiber). HSA/FSA eligibility isn't clearly marked, so double-check before submitting for reimbursement.

Shop the OLIPOP Classic Grape

Best Breakfast Upgrade: Yoga Bar 26g High Protein Oats Fruit & Nut

Oats do quiet, powerful things for fiber goals. Whole oats contain beta-glucan, a soluble fiber that a Harvard Nutrition Source review notes can modestly lower blood cholesterol at around 3 grams per day. This version also packs 26g of protein, so breakfast actually feels like a full meal (and keeps you fuller than a regular oatmeal packet).

Shop the Yoga Bar 26g High Protein Oats | HSA/FSA Eligible

Best for Sensitive Guts: Fody Peanut Butter Chocolate Quinoa Snack Bars

If you've been trying to add fiber and getting steamrolled by bloat, these are worth a look. They skip common high-FODMAP ingredients like inulin, dates, honey, and whey, which is often what was setting off your gut in the first place. Great to stash in a desk drawer for the 3 p.m. hunger dip.

Shop the Fody Peanut Butter Chocolate Quinoa Snack Bars | HSA/FSA Eligible

Some of these products are HSA/FSA eligible (we've flagged them above). Eligibility can vary by plan administrator and may require a connection to a diagnosed health concern, so check with your provider if you're unsure.