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Plant vs. Animal Protein: Which Fuels a Longer Life?
When you think of protein, you probably think of animal products like steak, chicken, eggs, milk, and cheese.
They’re the go-to option for most people looking to build muscle, boost energy, and fend off illness.
But balancing your animal protein intake with more sources of plant protein can help you stay strong and healthy as you age. And new research shows that, while animal proteins help you stay healthy when you’re younger, getting your protein from plants may help you live longer. Especially in your 50s, 60s, and 70s.
Let’s take a look at how a simple shift in your diet can promote your wellbeing long into your later years.
More Plant Protein May Help You Live Healthier, Longer
A 2025 study published in Nature Communications found that a higher intake of plant-based proteins was associated with lower mortality rates in adults. And that effect got stronger as the population aged—people in their 70s may have the most to gain from shifting to a diet higher in plant-based protein.
In short, shifting your protein intake toward plant-based sources—especially as you age—can help boost your
Living a long life; influenced by genetics, environment, and lifestyle.
Learn MorePrevious research has also shown that getting more of your protein from plants can reduce your chances of chronic disease like Type-2 diabetes, cardiovascular disease, coronary artery disease, and dementia.
That means plant proteins can help you live a longer, healthier, more fulfilling life. And you can get started by making just a few changes to your weekly diet.
What Makes Plant Protein Better for You?
On a molecular level, protein is protein. No matter where it comes from, it’s made up of the same molecules—amino acids. So why is plant protein such a longevity-boosting powerhouse?
Let’s take a look at the foundational difference between animal and plant proteins:
- Animal proteins are typically “complete” proteins, meaning they contain all nine essential amino acids your body can’t make on its own.
- Plant proteins are often “incomplete,” meaning they lack one or more of the essential amino acids. However, you can get all nine by eating a variety of plant-based protein sources.
But there are important differences between the foods that are high in animal and plant proteins. Those differences go beyond amino acids and have a big effect on your healthspan:
- Foods high in animal protein usually come with more saturated fat—especially red meat. High intake of saturated fat has been linked to negative health outcomes like heart disease, cancer, and overall mortality.
- High-protein plant foods tend to be lower in total fat
and higher in unsaturated fats, which are associated with a range of
health benefits, including better heart health and reduced inflammation.[in-fluh-mey-shuhn] noun
Your body’s response to an illness, injury or something that doesn’t belong in your body (like germs or toxic chemicals).
Learn More - Whole grains have fantastic benefits, and have been associated with decreased cardiovascular diseases like heart disease and stroke. And they’re a great source of plant-derived protein.
- Dietary fiber is great for intestinal health and may reduce cancer risk—foods that have high plant protein content also tend to have a lot of fiber.
How Much Plant Protein Should You Eat?
In the 2025 study, the highest survivorship rates at age 60 were noted among people who were consuming around 130g of protein every day, with almost two-thirds of that coming from plants. That’s around 45g of animal protein and 85g of plant protein per day.
A 2024 study backs that up, saying that a 1:2 ratio of plant to animal protein could be effective in preventing cardiovascular disease, while a ratio closer to 1:1 is better for preventing coronary heart disease.
(For reference, the average American intake is around a 1:3 ratio of plant-to-animal proteins.)
There are lots of different recommendations for overall protein intake, though we’re fans of keeping things simple with the 30-gram rule at Super Age.
The important thing to remember from this particular study is that shifting away from animal-derived proteins and toward plant-based ones, especially as you age, can be an important part of leading a long, healthy life.
How to Choose the Healthiest Animal Protein
This isn’t about cutting meat out completely; it’s about optimizing the amount of animal proteins you eat. Choosing smarter sources of animal protein can help you reduce inflammation, support heart health, and get more nutrients per bite. Here’s how to level up your plate:
- Go for Grass-Fed or Pasture-Raised:
Look for organic, grass-fed beef and pasture-raised pork or lamb. These options typically have more omega-3 fatty acids, higher levels of conjugated linoleic acid (CLA), and less inflammatory fat compared to conventional meat - Favor Wild Game When You Can:
Meats like elk, deer, or bison are naturally leaner and often richer in omega-3s due to their wild forage diet. - Choose Pasture-Raised or Wild Poultry:
Opt for pasture-raised chicken or turkey, or wild birds like duck or goose for a better nutrient-to-calorie ratio and cleaner fat profile. - Pick Wild-Caught Fish:
Prioritize wild-caught ocean fish over farmed fish to avoid chemical contaminants like PCBs, and increase intake of healthy long-chain omega-3s (EPA and DHA). - Avoid Ultra-Processed Meats:
Minimize intake of processed meats like bacon, sausage, and deli meats, which are linked to higher risks of heart disease and cancer
Easy Swaps to Get the Best Plant Proteins
To get to a 1:1.5 or 1:2 ratio of plant-to-animal protein, replace some of the meat you eat in a regular week with plant-based sources of protein. And swap some low-protein sides and snacks for higher-protein alternatives (with an emphasis on plants, of course).
Here are a few great places to start getting more healthspan-extending plant proteins:
- Swap tofu in for fish
- Replace your beef burger with a plant-based one
- Serve a side of quinoa in place of white rice
- Snack on nuts and seeds instead of crackers
- Emphasize whole grains over processed ones
You can also add plant-derived protein to your diet with protein powders that are made from peas or soybeans—though whole-food sources are better, especially because you get the benefits of fiber and whole grains.
Swapping meat for a plant-based alternative even a couple times a week will help you get closer to that 1:2 ratio. And emphasizing higher-protein plant options for snacks will help keep you feeling energized while increasing your fiber intake.
These easy changes will boost your plant protein intake, help you live longer, and reduce your chances of developing a range of chronic diseases. Start emphasizing plant protein today and you’ll reap the benefits for decades!
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