Everyone Is Talking About Peptides. Maybe We Should Talk About Protein First.

Peptides seem to be everywhere right now.

People are talking about injections for recovery, muscle, weight loss, aging, sleep and all kinds of other things. There are peptide clinics, podcasts about peptides and companies selling products I had never heard of a few years ago.

I didn't really understand what a peptide was, so I started reading.

The basic idea is actually pretty simple.

A peptide is a short chain of amino acids. Proteins are made from amino acids too, only arranged in much longer chains.

And that made me think about food.

Before peptides come amino acids

When we eat protein, our digestive system breaks much of it down into amino acids and smaller peptides.

Those amino acids then become raw materials the body can use.

That includes maintaining and rebuilding muscle, making enzymes and producing many of the signaling molecules the body depends on.

The NIH Office of Dietary Supplements puts it pretty plainly: adequate dietary protein provides the essential amino acids needed for muscle protein synthesis and recovery after exercise. Meat, poultry, fish, eggs and dairy are examples of complete proteins containing all of the essential amino acids.

There isn't anything particularly new about that.

Human beings have always needed protein.

Beef is more than protein

This is also one reason I think we've made a mistake when we reduce meat to grams of protein.

Beef is certainly a very good source of complete protein. But you're eating a food, not an isolated nutrient.

Along with the amino acids come nutrients such as vitamin B12, iron and zinc, among others.

That combination matters to me.

We spend a lot of time today trying to identify individual compounds that might improve some part of human biology. Then we isolate them, manufacture them, concentrate them and sell them back to ourselves.

Sometimes that is useful. Modern medicine can do remarkable things.

But I don't think it should make us forget the basics.

This isn't an argument against medicine

I want to be careful here.

Eating a steak is not the same thing as taking a peptide drug.

There are legitimate peptide medicines with specific medical uses. They act as signaling compounds in ways dietary protein does not.

There is also a much broader peptide market developing around compounded and unapproved products. The FDA has raised concerns about some of these products, including limited human safety information, peptide-related impurities and potential immune reactions.

So I'm not suggesting that food can replace a medicine somebody actually needs.

I'm asking a different question.

Before we reach for another injection, powder, pill or specialized compound, have we taken care of the nutritional foundation?

Give the body the raw materials

Our bodies are extraordinarily complicated.

I don't pretend to understand all of the pathways involved in muscle growth, hormones, metabolism or recovery.

But one thing seems fairly straightforward: the body cannot build something out of materials it doesn't have.

Essential amino acids are called essential because our bodies cannot make enough of them. We have to get them from food.

A piece of beef brings those amino acids together in a form humans have been eating for a very long time.

That's not a miracle claim.

It's just food.

And then I come back to the pasture

For us at Tyner Pond Farm, the conversation goes one step further.

If we're going to rely on food for nutrition, I think we should pay attention to how that food was produced.

Our cattle spend their lives eating grass and other plants from pasture. We manage those pastures through grazing rather than trying to force the land into a prescribed production system.

The animal is part of the landscape.

Then that animal becomes food.

I've become increasingly interested in that entire chain: soil, plants, animals and eventually us.

Not because I think one steak solves every health problem.

It doesn't.

But because I think we've gotten very good at looking for sophisticated interventions while sometimes overlooking the food sitting in front of us.

The current interest in peptides actually reinforces that for me.

Peptides are built from amino acids.
Amino acids come from protein.
And good food remains a pretty sensible place to start.