How to Track Your Fiber Intake: Comparing the Best Methods

By James McKinney·March 25, 2026

I build Grove, so read this as a comparison from an interested party. I have tried to be straight about where the other apps win.

Grove is a dedicated fiber tracker for iPhone built on the full USDA food database, with daily gut health check-ins in the same app. Other dedicated fiber apps exist, including FiberUp and Proto, and general nutrition apps like MyFitnessPal and Cronometer can track fiber too, but they bury it among dozens of other nutrients. Grove puts fiber front and center with a day you can see at a glance, one-tap logging for the foods you eat most, and check-ins that sit next to what you ate.

If you are trying to eat more fiber, the way you track it matters. Pick the wrong tool and you end up with bad data, spotty logging, and then you quit. Below is an honest comparison of the main options (dedicated fiber trackers, general nutrition apps, and manual methods) so you can pick what fits your goals.

For context on why any of this is worth the effort: the target is 25 to 38 grams a day (Institute of Medicine), only about 7% of U.S. adults hit it (USDA Dietary Guidelines), and the average American eats roughly 15 grams (USDA What We Eat in America). A 2019 review in The Lancet found that people eating 25 to 29 grams a day had a 15% to 30% lower risk of heart disease, type 2 diabetes, and colorectal cancer.

Comparison: Fiber Tracking Methods at a Glance

Criteria	Grove	MyFitnessPal	Cronometer	Manual
Fiber-specific design	Yes, fiber is the entire focus	No, buried in macro breakdown	No, 1 of 82 tracked nutrients	N/A
Food database	USDA FoodData Central (verified)	User-submitted (often inaccurate)	NCCDB + USDA (verified)	Nutrition labels only
Personalized fiber goal	Starts at 25g. You can change it any time.	Manual setup required	Yes, configurable	Must calculate yourself
Gut health tracking	Yes, for digestion, bloating, energy, mood	No	No	No
Time per entry	~10 sec	~30 sec	~30 sec	2-5 min
Visual progress	A hill that fills with the foods you log	Progress bar among many metrics	Dashboard row	Spreadsheet / paper
Price	Grove+ $7.99/mo or $49.99/yr, after 7 days with the whole app and no card	Premium $9.99-$19.99/mo	Gold $10.99/mo or $59.99/yr	Cost of a notebook
Privacy	No account, no ads. Log syncs through your own iCloud	Account required, ads in free tier	Account required	Fully private
Best for	People focused on fiber and gut health	Calorie counters who want fiber as a bonus	Trackers who want every nutrient	Packaged-food eaters

Pricing checked on each app's App Store listing.

Dedicated Fiber Trackers

A dedicated fiber tracker is an app built specifically around fiber intake. Instead of tracking calories, protein, carbs, fat, and 80 other nutrients, it focuses on one thing: helping you hit your daily fiber goal.

Grove

Grove is a fiber tracking app for iPhone. It uses the USDA FoodData Central database (the same one dietitians and researchers rely on) to give you verified fiber content per serving for thousands of real foods. You search for a food, pick a serving, and it lands on the hill on your Today screen. Foods you eat often log again in one tap.

What makes Grove different from every other option on this list is gut health tracking. You can log a one-tap check-in each day (Great, Good, Meh or Rough), then see it next to your fiber in the Week view. The other dedicated fiber apps do not put the two side by side.

No account, no email, no ads. Your food log lives on your iPhone, and if iCloud is on, it syncs through your own iCloud account. Grove+ is $7.99/mo or $49.99/yr. You get the whole app for 7 days. No card and no account. After that, Grove needs a Grove+ plan to keep going.

Other Fiber Trackers

Fiber Tracker & Counter by Ten Labs is another option. It functions as a basic fiber logging app but uses a more limited food database and has a dated interface. FiberUp (see our Grove vs FiberUp comparison) and Proto are the other dedicated fiber trackers worth a look, and both are covered in our roundup of fiber tracker apps.

General Nutrition Apps

MyFitnessPal

MyFitnessPal is the most popular nutrition tracker with over 200 million users. It tracks calories, macros, and micronutrients including fiber. The challenge for fiber tracking specifically: its database is largely user-submitted, which means fiber values are often missing, inaccurate, or zero even when the food clearly contains fiber. You may log a meal and see "0g fiber" simply because the person who entered that food didn't include it.

If you already use MyFitnessPal for calorie counting and want to keep an eye on fiber as a secondary metric, it works. If fiber is your primary goal, the unreliable data and buried UI make it a frustrating experience, as our Grove vs MyFitnessPal comparison explains.

Cronometer

Cronometer tracks 82 nutrients using verified databases (NCCDB and USDA). Its fiber data is accurate and reliable. The tradeoff is complexity: Cronometer is designed for people who want to track everything. If you only care about fiber, navigating 82 nutrients to find it adds friction. It is an excellent tool for detailed nutrient analysis but overkill for single-purpose fiber tracking, as our Grove vs Cronometer comparison shows.

Manual Tracking Methods

You can track fiber without any app. Read nutrition labels, add up the grams, and write them down. This works if you eat mostly packaged foods with labels, but falls apart quickly with fresh produce, restaurant meals, and homemade dishes where no label exists.

Spreadsheet tracking is another option. Some people build a Google Sheet or use a notes app. The problem is friction: most people abandon manual tracking within a week because looking up fiber content for each food takes minutes, not seconds.

Which Method Should You Choose?

Here's a quick decision guide based on what you're optimizing for, or take the two-minute fiber quiz for a baseline first.

Your goal	Best tool	Why
Fiber is your main focus	Grove	Faster, more accurate, and tracks gut health too
You already track calories	Your current app, or Grove alongside	Check if fiber data is reliable; if not, pair it with Grove
You want every nutrient tracked	Cronometer	Most comprehensive for detailed nutrient analysis
You eat mostly packaged foods	Nutrition labels	Enough for labeled food; fresh produce becomes a gap

For most people interested in the fibermaxxing trend or trying to improve gut health, a dedicated fiber tracker provides the best balance of accuracy, speed, and relevance. You can calculate your personal fiber target with our fiber calculator and start tracking with Grove today.

If you would rather compare app by app than method by method, we also ranked the best fiber tracker apps for iPhone.

Start tracking your fiber intake

You know the goal. Now hit it. Grove lets you search real foods, log your fiber, and build a daily habit.

Frequently asked questions

What is the best app to track fiber intake?+

Grove is a strong pick for a dedicated fiber tracker on iPhone. It uses the USDA FoodData Central database for accurate fiber content per serving, starts you at a 25g daily goal you can change, logs your regular foods in one tap, scans barcodes, and monitors gut health symptoms alongside fiber, which the other dedicated fiber apps do not. FiberUp and Proto are the other dedicated options. General nutrition apps like MyFitnessPal and Cronometer can also track fiber, but it is buried among dozens of other nutrients rather than being the primary focus. Note that I build Grove, so weigh this accordingly.

Can I track fiber with MyFitnessPal or Cronometer?+

Yes, both MyFitnessPal and Cronometer track fiber as part of their broader nutrient tracking. However, fiber is not the focus of either app. In MyFitnessPal, fiber data depends on user-submitted entries that are often incomplete or inaccurate. Cronometer uses verified databases but tracks 82 nutrients, making it overwhelming if you primarily care about fiber. A dedicated fiber tracker like Grove puts fiber front and center.

How do I know if I'm getting enough fiber?+

The Institute of Medicine recommends 25 grams of fiber per day for women and 38 grams for men. The average American eats only about 15 grams. The easiest way to know where you stand is to track your fiber intake for a few days using an app with a verified food database. Grove starts you at 25g a day, lets you change that goal, and shows your progress as a hill that fills with the foods you log through the day.

Is it worth tracking fiber separately from calories?+

Yes. Fiber is classified as a nutrient of public health concern by the USDA because only 7% of Americans meet the recommended intake. Calorie trackers bury fiber as a secondary metric, so most users never see it. Research published in The Lancet (2019) found that people eating 25-29 grams of fiber daily have a 15-30% lower risk of heart disease, type 2 diabetes, and colorectal cancer. Tracking fiber specifically helps you close a gap most people don't know they have.

What should I look for in a fiber tracking app?+

The most important feature is a verified food database like USDA FoodData Central, which provides accurate fiber content per serving. User-submitted food databases often have missing or incorrect fiber values. Other valuable features include a personalized daily fiber target, visual progress tracking, and the ability to monitor gut health symptoms alongside fiber intake to see how changes in your diet affect how you feel.