The fiber tracker built for gut health.40g fiber a day. 30 plants a week. One gut score.
Most people get under 15g. We help you reach the gut-health target backed by research.
Every fruit, herb, spice, seed and nut counts. Plant variety feeds your microbiome.
Your fiber and plant diversity combined into one clear daily signal. Watch it climb.
Most nutrition apps obsess over macros and miss the metric that actually shapes how you feel: fiber and plant diversity.
Your gut microbiome thrives on the variety and volume of plants you eat. Two people can eat the same calories and have completely different gut health based on what's on their plate.
Fiber First is built around what your body actually needs.
of adults don't get enough fiber. Your gut microbiome can tell.
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Your daily gut score combines your fiber intake and plant variety into one clear number. The more fiber and the more different plants you log, the higher the score climbs. One daily signal of how well you're feeding your microbiome.
Diversity is what your microbiome thrives on — different plants feed different gut bacteria. Every unique plant food you eat in a week counts toward 30: fruits, vegetables, leafy greens, sea vegetables, herbs, spices, seeds, nuts, legumes, whole grains. Each new one logged adds to your weekly diversity count. Hit 30 in 7 days and you're feeding the full ecosystem.
Yes. The 30-plants-a-week metric comes from the American Gut Project — analysis of more than 10,000 microbiome samples across the US, UK, and Australia, showing that people who eat 30+ different plants weekly have significantly more diverse gut microbiomes than people eating fewer than ten. The 40g daily fiber target is rooted in research on what supports microbial diversity — well above the 10-15g most people actually get.
Most nutrition apps obsess over calories and macros — protein, carbs, fat. Fiber First tracks the metrics that actually shape gut health: fiber, plant diversity, and hydration. No calorie counting, no protein chasing. Just what changes how you feel.
Yes. From your account settings. You keep access through the end of your current billing cycle. Simple as that.
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