How to compare fava bean protein prices

A container's sticker price doesn't say what a serving actually costs — that depends on how many servings are in the container and how much protein each one delivers. Divide price by servings for a per-serving cost, then divide that by grams of protein for a price-per-gram figure that lets you compare two products fairly, even at different scoop sizes.

Price per serving, then price per gram of protein

Price per serving — total price divided by number of servings — is the first, easiest check, the same way unit pricing works on a grocery shelf. It doesn't finish the comparison on its own, because grams of protein per serving vary between products even at similar scoop sizes. Dividing price per serving by grams of protein per serving gives you price per gram of actual protein, the number that controls for both variables at once.

Why the protein content per gram varies

A 2020 lab comparison found a fava bean protein isolate (made by acid extraction and isoelectric precipitation) reached about 90% protein by dry weight, while a dry-fractionated fava bean flour reached about 64%. A product using the flour or a lower-concentration blend needs a larger serving to deliver the same grams of protein as one built on the isolate — which is exactly why price per serving alone can be misleading if you don't also check the grams of protein that serving actually contains.

It's usually part of a blend, not a standalone number

Fava bean protein is commonly sold as one ingredient inside a blended protein powder, most often alongside another plant protein or a fermented yeast protein, rather than sold alone. Most labels give a single total-protein figure for the finished blend, not a separate gram amount for the fava bean component specifically — so "price per gram of fava bean protein" in isolation often isn't a number the label actually lets you calculate. Price per gram of total protein in the product is usually the only figure available. See how to choose a good fava bean protein for reading the rest of that label.

What this page won't do

This page doesn't quote a typical market price range for fava bean protein products — no sourced, current dataset backs a specific dollar figure, and a number pulled from memory or a single retailer wouldn't be reliable. The math above works on whatever product's label you're actually looking at, which is the more useful comparison regardless of where prices happen to sit at any given time.

Questions people ask

How much protein is in fava bean tofu, per 100g?

Tofu is traditionally made from soybeans, not fava beans, though fava-bean-based tofu-style products exist. Cooked fava beans themselves contain about 7.6 g of protein per 100 g, per USDA FoodData Central — a whole-food figure, not the same as a concentrated protein isolate powder, which delivers far more protein per gram.

Is fava bean protein cheaper than whey?

No sourced comparison of production costs exists for these two ingredients specifically. Price varies by brand, blend and where it's sold; comparing price per gram of protein on the specific products you're considering is more reliable than a general assumption about which source costs less.

What's a fair price per serving?

There's no fixed benchmark — "fair" depends on grams of protein per serving, what else is in the blend, and how the specific product is tested and sourced. Price per gram of protein lets you compare products against each other; it doesn't tell you on its own whether a price is fair.

Related reading: how to choose a good fava bean protein and fava bean protein without fillers.