Categorical Taxonomy Hub

Plant Protein Sources

Explore 23 ingredients and additives classified under Plant Protein Sources. Check forensic animal derivations, E-numbers, and verified plant swaps.

17

100% Plant-Based

5

Animal Derived

0

Check Required

All Plant Protein Sources (23)

Albumin

✗ Not Vegan

Albumin refers to globular proteins, most commonly derived from chicken egg whites (ovalbumin) or blood serum (bovine serum albumin).

Almonds

✓ Vegan

Almonds are nutrient-dense tree nuts rich in vitamin E, dietary fiber, magnesium, and plant protein. 100% plant-based.

Casein

✗ Not Vegan

Casein is the primary protein found in mammalian milk (accounting for ~80% of cow's milk protein).

Cashews

✓ Vegan

Cashews are the seeds of the cashew apple tree. 100% plant-based and the most versatile whole-food base for dairy-free cheeses, creams, and sauces.

Chia Seeds

✓ Vegan

Chia seeds are edible seeds from the desert plant Salvia hispanica, rich in omega-3 ALA, fiber, and complete protein.

Chickpeas

✓ Vegan

Chickpeas (Cicer arietinum) are nutrient-packed annual legumes, providing protein, fiber, and producing aquafaba cooking liquid.

Edamame

✓ Vegan

Edamame are young, green whole soybeans harvested before ripening. 100% natural plant food with ~18.5g complete protein per cooked cup.

Eggs

✗ Not Vegan

Eggs are laid by female birds (principally domestic chickens). Veganism rejects the commodification of reproductive animal bodies.

Flaxseed

✓ Vegan

Flaxseed (Linum usitatissimum) is a nutrient-dense edible plant seed high in ALA omega-3 fatty acids and soluble fiber.

Hemp Seeds

✓ Vegan

Hemp seeds are the shelled seeds of Cannabis sativa. They are non-psychoactive and a complete plant protein with an ideal 3:1 omega-6 to omega-3 ratio.

Lentils

✓ Vegan

Lentils (Lens culinaris) are edible legumes known for high protein, dietary fiber, iron, and folate.

Nutritional yeast is a deactivated species of Saccharomyces cerevisiae grown on molasses, harvested, washed, and dried with heat.

Paneer

✗ Not Vegan

Paneer is a non-aged, non-melting soft cheese made by curdling cow or buffalo milk with lemon juice, vinegar, or citric acid. Because it is made from animal milk, it is not vegan.

Peanut Butter

⚠ Check

The vast majority of peanut butter is 100% vegan, made simply from roasted peanuts, salt, and plant oils. A few specialty brands contain bee honey or animal-derived mono-and-diglycerides.

Pumpkin Seeds

✓ Vegan

Pumpkin seeds (pepitas) are green edible seeds of pumpkins. Packed with ~30g plant protein per 100g and the highest plant source of bioavailable zinc and magnesium.

Seitan

✓ Vegan

Seitan is made by washing wheat flour dough with water until all the starch granules have been removed, leaving pure wheat gluten.

Soy Milk

✓ Vegan

Soy milk is produced by soaking, grinding, and boiling dry soybeans with water.

Spirulina

✓ Vegan

Spirulina is a nutrient-dense blue-green microalga cultivated in fresh alkaline water ponds. 100% plant-based superfood containing ~57g protein per 100g.

Tahini

✓ Vegan

Tahini is a condiment made from toasted, ground hulled sesame seeds.

Tempeh

✓ Vegan

Traditional Indonesian food made by fermenting cooked whole soybeans with Rhizopus oligosporus mold.

Tofu

✓ Vegan

Tofu is made by coagulating fresh soy milk, pressing the curds into solid blocks. 100% plant-based.

Walnuts

✓ Vegan

Walnuts are the champion nut source of plant-based Alpha-Linolenic Acid (ALA Omega-3 fatty acids). 100% plant-based whole food.

Whey

✗ Not Vegan

Whey is the liquid remaining after milk has been curdled and strained during cheese making. It is directly animal-derived.

Understanding Plant Protein Sources in Plant-Based Diets

Biochemical Origins & Production

Ingredients in the Plant Protein Sources category can stem from plant crops, microbial fermentation, mineral synthesis, or animal byproducts. In modern industrial food processing, identical chemical compounds are frequently produced via both botanical and animal extraction routes.

When an ingredient has dual-source origin (such as glycerin, mono- and diglycerides, or stearic acid), vegan certification or direct manufacturer confirmation is necessary to ensure 100% plant or synthetic origin.

Label Reading & Ingredient Scrutiny

Food labeling regulations in major jurisdictions (including US FDA 21 CFR and EU Regulation 1169/2011) do not require manufacturers to disclose whether processing aids or multi-source carriers contain animal byproducts.

Always look for explicit "Suitable for Vegans" or "Certified Plant-Based" seals on packaged food products containing items flagged as Check Required.

Scan a Full Product Label

Paste any ingredient list from a package to instantly detect animal byproducts, E-numbers, and ambiguous additives with our live Ingredient Checker.

Frequently Asked Questions

What ingredients are in the Plant Protein Sources category?
This directory catalogs 23 verified items including Albumin, Almonds, Casein, Cashews, Chia Seeds, and more with documented vegan statuses and scientific provenance.
How do I know if an item in Plant Protein Sources is vegan?
Each item is color-coded: Green (100% plant-derived), Red (animal-derived slaughter or secretion byproduct), and Amber (dual-source additive requiring manufacturer verification).