Fibermaxxing Without the Bloating

Fiber has had a big year. "Fibermaxxing" spread across social media as people started tracking fiber the way they used to track protein. The trend points in the right direction. Most adults in the US eat roughly half the fiber they should, and fiber does real work: it slows how fast sugar reaches the blood, helps carry cholesterol out through the gut, keeps you full longer and feeds the bacteria in the colon.

The problem is how most people start. They go from very little fiber to a lot in a few days, feel bloated and crampy, and decide fiber does not agree with them.

Why a fast jump causes gas

Your own enzymes cannot digest fiber. It reaches the colon intact, and the bacteria there ferment much of it. Fermentation makes useful compounds that nourish the lining of the gut, and it also makes gas.

The bacteria that handle fiber grow in number when they are fed regularly. Double your fiber overnight and the gut is not used to that much fermentation yet, so the gas builds faster than you are used to. Raise it gradually and those bacteria grow along with the supply. The same amount of fiber that caused cramping in week one is often barely noticed by week three.

How to ramp up

• Add a little each few days and reach your goal over 2 to 3 weeks.
• Drink more water as you go. Soluble fiber pulls water into the gut to form a soft gel. Without enough fluid, more fiber can make constipation worse instead of better.
• Spread it across the day. Fiber at every meal is easier on the gut than one very large serving at dinner.
• Lean on foods you already eat: berries, beans, lentils, oats, chia, vegetables, potatoes with the skin on.

An earlier post covered how much to aim for. This one is about getting there.

Whole foods over fiber bars

Many fiber bars, protein bars and "high fiber" snacks reach their number with added fibers like inulin, often listed as chicory root fiber. Inulin ferments quickly and is one of the more common causes of gas and bloating. A bar can give you 10 grams of fiber on the label and a rough afternoon.

Whole foods are different. A bowl of berries or a cup of lentils brings several kinds of fiber at once, along with water, vitamins and minerals, and they ferment at different speeds, which spreads the work out. A pear and a serving of beans will get you further, with less discomfort, than any bar built around one isolated fiber.

If fiber has bothered you in the past, the answer is usually the pace and the source, not fiber itself.

A plan built from your own numbers takes the guesswork out of how much to eat and how fast to build up. That's what we do in the nutrition program.

See how HYBRD Nutrition works

This article is educational and is not medical advice.