Animal vs. Plant Protein: The Real-Life Comparison

If you’ve ever stood in the grocery aisle debating between chicken breasts and chickpeas, you’re not alone.

The animal vs. plant protein debate has been everywhere — from documentaries to fitness influencers to your one friend who just discovered lentils. But instead of turning this into a nutrition brawl, let’s talk about what actually matters in real life: energy, convenience, cost, health, and how you feel eating it.

Because most of us aren’t bodybuilders. We’re just trying to eat better without overcomplicating dinner.

What Even Is a “Complete” Protein?

Protein is made up of amino acids. There are nine essential ones your body can’t make on its own — you have to get them from food.

Animal proteins like chicken, eggs, beef, and salmon contain all nine essential amino acids. That’s why they’re called “complete” proteins.

Most plant proteins, like lentils, chickpeas, black beans, and nuts are lower in one or two essential amino acids.

But here’s the part the internet forgets to mention: your body doesn’t need every amino acid in one bite. If you eat a variety of plant foods throughout the day, you’ll get what you need.

No protein panic required.

Muscle Building: Is One “Better”?

Animal protein has slightly higher bioavailability — meaning your body absorbs it efficiently. That’s why foods like eggs and whey are popular in fitness circles. But here’s what research consistently shows: If total protein intake is adequate, you can build muscle on either.

There are elite athletes who thrive on fully plant-based diets. There are also athletes who swear by steak and eggs. The difference usually comes down to total daily protein, overall caloric intake, training consistency, and personal preference.

Cost & Convenience 

Animal protein is often more expensive per pound, needs refrigeration, and has a shorter shelf life (pssst…our meat sticks have an excellent shelf life and are great for on the go!)

Plant protein can often times be more affordable, especially dried beans and lentils. If you’re going for canned or dried options, they have a long shelf life as well. If you’re budgeting, plant proteins almost always win. If you’re meal-prepping for convenience, a rotisserie chicken might feel easier than soaking beans.

Real life matters more than theory.

Health Considerations

This is where nuance is important.

High intake of processed meats has been linked to health risks. Whole-food animal proteins like fish and eggs are generally different from heavily processed options.

Plant proteins bring things like fiber, phytochemicals, and typically lower saturated fat. Animal proteins bring vitamin B12, which is hard to get from plants, iron, and omega-3 fatty acids.

Neither category is automatically “healthy” or “unhealthy.” The pattern and individual choices matter more than the label.

Sustainability

Animal agriculture generally requires more land, water, and resources than plant protein production. That doesn’t mean everyone must go vegan tomorrow. You can also reduce your footprint by investing in local providers that have ethical practices (i.e. Primal Eats!)

Replacing a few animal-based meals per week with beans, lentils, or tofu can reduce environmental impact meaningfully. It’s not an all or nothing situation!

The Bottom Line?

Most people don’t struggle with nutrition goals because they picked the “wrong” protein source.

They struggle because they don’t eat enough protein overall, they rely too heavily on ultra-processed foods, and they aim for perfection instead of consistency and realism.
Luckily, you don’t have to choose a side! You can eat scrambled eggs for breakfast, lentil soup at lunch, and salmon at dinner. It’s all about balance!

So… Which Should You Choose?

Here’s the least dramatic answer you’ll hear today:

• If you love animal protein and feel good eating it → keep it.
  

• If you prefer plant protein → totally viable.
  

• If you want both → that’s probably the most flexible option long term.

Have more nutrition questions? Pop in to our Facebook Live the first Tuesday of every month from 7-8p CST to chat directly with our dietitian!