High-protein, high-fiber foods (and how to track them)
Most foods are strong in one of protein or fiber, not both. Meat and eggs bring protein with no fiber at all, while fruit and vegetables bring fiber with comparatively little protein.
Here are the foods that genuinely deliver both, and a simple way to keep an eye on both numbers without doing the math yourself.
Quick answer
Legumes are the clearest example of a food high in both protein and fiber: lentils, chickpeas, and black beans all provide meaningful, roughly comparable amounts of each per serving, while edamame leans more heavily toward protein. Whole grains paired with a legume, such as rice and beans or a whole-grain wrap with hummus, get you close too. Proto can log either from a photo, so both numbers show up together without manual entry.
Foods that are high in both protein and fiber
These are typical values for common serving sizes. Exact numbers vary by brand and preparation, so check the label for a specific product if you want a precise figure.
| Food | Typical serving | Approximate protein | Approximate fiber |
|---|---|---|---|
| Lentils, cooked | 1 cup (198 g) | 18 g | 15 g |
| Chickpeas, cooked | 1 cup (164 g) | 15 g | 12 g |
| Black beans, cooked | 1 cup (172 g) | 15 g | 15 g |
| Edamame, cooked | 1 cup (155 g) | 17 g | 8 g |
| Split peas, cooked | 1 cup (196 g) | 16 g | 16 g |
| High-fiber cereal with milk | 1 cup cereal + 1/2 cup milk | 10 to 12 g | 10 to 14 g |
Why so few foods deliver both
Animal foods like chicken, eggs, and dairy are efficient sources of protein but contain no fiber at all, since fiber comes from plant and fungal cell structures, not animal tissue. The most protein-dense sources that do contain fiber tend to be legumes and a handful of grains. That is why a diet built mostly around meat and dairy can hit a protein target easily while falling short on fiber, even when total food volume looks reasonable.
The practical fix is not switching entirely to plant sources, it is pairing. Adding a scoop of beans to a chicken bowl, or a side of lentils next to eggs, closes the fiber gap without giving up protein-dense foods you already rely on.
Tracking both numbers without extra effort
Once you start pairing protein-heavy and fiber-heavy foods, the numbers get harder to estimate from memory. A bowl of rice, beans, and grilled chicken has a real answer for both protein and fiber, but few people can total that up accurately by eye.
Proto reads a photo of your plate and estimates protein and fiber together, so a legume-based meal logs both numbers at once instead of requiring two separate lookups. If you want the full case for tracking them together, see why protein and fiber are better tracked together, or use our protein calculator and fiber calculator to set daily targets first.
Takeaway
Legumes, split peas, and whole grains paired with beans are a practical way to hit meaningful protein and fiber in the same food or meal. For everything else, pairing a protein-dense food with a fiber-dense one gets you most of the way there without changing your diet entirely.
Please note: Proto does not provide medical or dietary advice. Always consult a qualified healthcare professional to determine appropriate protein and fiber intake for your needs.
Frequently asked questions
What foods are high in both protein and fiber?
Legumes like lentils and chickpeas, edamame, high-fiber cereals with milk, whole grains paired with beans, and some protein-fortified snack bars all combine meaningful protein with meaningful fiber in one food.
Why is it hard to find foods high in both protein and fiber?
Most protein-dense foods are animal-based (meat, eggs, dairy) and contain little to no fiber, since animal tissue has no fiber at all. Most fiber-dense foods are plant-based and lower in protein. Foods that deliver both usually come from legumes, whole grains, or a deliberate pairing of the two.
Can Proto track protein and fiber together automatically?
Yes. Proto reads a photo of your plate and estimates protein and fiber together, so a lentil bowl or a bean and grain plate logs both numbers at once without manual entry.