"Natural flavors."

You've seen it on every label. Protein powders, electrolyte drinks, sparkling water, even your "healthy" snacks. It sounds harmless. Natural. Clean.

It's not.

Natural Flavors Ingredients: What "Natural Flavors" Actually Means

According to the FDA, a natural flavor is any substance extracted from a plant or animal source. That's it. That's the only requirement.

Here's the problem: "extracted" doesn't mean "simple." A single natural flavor can contain anywhere from 50 to 100 different chemical compounds. Solvents, preservatives, emulsifiers, carriers. All of it hidden under one vague term.

The strawberry "natural flavor" in your protein shake might technically start from a strawberry. But by the time it reaches your tub, it's been processed, distilled, and combined with dozens of other substances in a lab.

Legally natural. Practically? Not even close.

Why This Matters for Fasting

When you're fasting, the whole point is metabolic simplicity. You're giving your body a break from processing anything unnecessary.

If you're drinking an electrolyte powder that contains "natural flavors," you're putting unknown compounds into your body during a time when you're trying to keep things both simple and clean.

Some of those compounds may affect gut bacteria. Some may trigger taste receptors that influence insulin. We don't fully know, because companies aren't required to disclose what's actually in their "natural flavors."

That's the real issue here. You can't make an informed decision about something you can't see.

How "Natural" Gets Made

Let me give you an example.

Vanillin, the compound that makes things taste like vanilla, can be derived from the vanilla bean. That would be truly natural.

But vanilla beans are expensive. So most "natural vanilla flavor" is actually produced by fermenting genetically modified yeast, or by processing lignin (a byproduct of the wood pulp industry), or by chemically converting eugenol from clove oil.

All of these can legally be called "natural flavor" because the starting material technically came from nature. Somewhere. At some point.

Does that sound natural to you?

The Flavor Industry Doesn't Want You to Know

Here's something most people don't realize: the companies that create natural flavors are the same companies that create artificial flavors. Same labs. Same chemists. Same processes.

The only difference is the starting material. If it began as a plant or animal, it's "natural." If it began as a petroleum derivative, it's "artificial."

The end product can be chemically identical.

"Natural" is a marketing term, not a health standard.

What to Look for Instead

If you want real ingredients, look for products that name them. "Lemon peel extract." "Ginger root." "Vanilla bean powder." These are actual ingredients. You know what they are and where they came from.

"Natural lemon flavor" is not the same as lemon; it's a lab-created compound designed to taste like lemon.

The easiest way to know what you're getting? Look at the "Other Ingredients" section on any supplement. If it lists natural flavors, stevia, citric acid, and a bunch of other stuff, that's what you're really consuming.

If it says "Other Ingredients: None," you're looking at the real thing.

Why I Left It Out

When I built Optimize, I made a decision early on: no natural flavors.

It would have been easier to add them. The product would taste sweeter. More people might get sensory buy-in from the first sip.

But I couldn't put something in the formula that I couldn't fully explain. If I don't know exactly what's in it, I'm not putting it in my body, and I'm definitely not recommending it to my coaching clients.

So we use real lemon peel, real ginger, and real vanilla bean. You can taste them. You know what they are.

That's the standard I hold myself to. If it goes in your body, you should know exactly what it is and why it's there.

I sincerely hope that helps you make better decisions about what you put in your body. 

— Schuyler