In late 2019, at 390 pounds in my kitchen, before my first loss, I asked myself one question that changed everything: How much can I eat every day and still guarantee myself weight loss?
The answer wasn’t a diet. It wasn’t a program. It was a number. My number. And once I had it, my weight became predictable for the first time in my life.
It was late 2019. I was in my kitchen at 390 pounds, before my first loss, knowing I needed to do something — and not knowing what that something was.
I had tried things. But this was before my first loss of 112 pounds, not during my comeback at 360 pounds. I calculated from the 199-pound man I intended to become.
This time, something was different. I wasn’t looking for motivation. I wasn’t looking for a new diet. I was looking for a guarantee.
I remember the exact thought. It went something like this:
“If I didn’t eat for a week, I’d lose weight. That’s guaranteed. But I can’t not eat for a week. So what’s the next best thing? How much can I eat every day and still guarantee myself weight loss?”
That question — right there — is where everything started. Not a program. Not a plan. A question. And the answer to that question is what I now call Know Your Number.
I started where most people start: calculators. TDEE calculators, BMR calculators, activity multipliers, calorie burn estimates for every exercise I could think of. I ran averages. I cross-referenced numbers. I built spreadsheets.
And the more I researched, the more I kept coming back to one concept: Basal Metabolic Rate.
BMR is the number of calories your body burns just to stay alive — heart beating, lungs breathing, organs functioning — before you take a single step or lift a single finger. It is the energy your body requires at complete rest.
And then it hit me.
No matter what activity I did or didn’t do. No matter what day of the week it was. If my calorie intake stayed below the number my body needed just to exist, my body would have to find the remaining energy somewhere else. And that somewhere else is stored body fat.
I had found my guarantee.
Before I committed to this idea, I stress-tested it. I asked doctors. I asked trainers. I asked anyone with a credential who would listen. I laid out the logic:
It's not a theory. It's physics. Energy in versus energy out is not a diet philosophy — it is how the human body works.
My number was a ceiling. Staying below it gave me a margin.
I wasn't looking for a diet that might work. I was looking for a margin. The BMR gave me one.
Within about a month, something shifted. The scale stopped feeling random. It stopped feeling like a verdict. It started feeling like a report — an honest, predictable report of exactly what I had done.
When I stayed under my number, the scale went down. When I went over, the scale reflected that too. The data made sense. The pattern was clear.
I wasn’t perfect. I went over my number plenty of times. But I was under it about 80% of the time. And the results were what the math said they would be.
Today, I can take any period of time — a week, a month, three months — add up the calorie surplus or deficit, divide by 3,500, and see which direction my weight should move. Not certainty. Direction.
My weight became predictable. And predictable means controllable.
Predictable means controllable. And controllable means you never have to start over again.
Most diets give you rules. Eat this, not that. Cut carbs. Avoid sugar. Eat before 6pm. The rules are different every time, but the structure is the same: follow the plan and hope it works.
Know Your Number is not a set of rules. It is a ceiling. A single number that, if you stay below it, gives you a margin.
A diet tells you what to eat. Know Your Number tells you how much. You can eat the foods you actually like. You can eat at restaurants. You can have the birthday cake. As long as you stay under your number, you have a margin.
This is not about perfection. It is about staying under your ceiling often enough that the math works in your favor. I did it 80% of the time. That was enough for about 2.1 pounds a week for 76 weeks.
The reason most people fail at weight loss is not lack of willpower. It is lack of a system. They are trying to lose weight without a margin. They are guessing. And guessing produces inconsistent results.
When you know your number, the guessing stops. The anxiety stops. The scale stops being your enemy and starts being your most useful tool.
Your number is not the same as mine. It is not the same as your friend’s. It is specific to your body, your weight, your age, your height, and your composition. But the process for finding it is the same.
Start with a BMR calculator. There are several formulas — the Mifflin-St Jeor equation is one of the most widely used and reasonably accurate starting points. Plug in your numbers and get a baseline.
Every calculator is wrong. Not because the math is bad, but because no formula can account for every variable in your specific body. Medication, hormones, metabolic history, sleep, stress — none of that is in the equation.
The calculator gives you a starting point. Your body gives you the real answer. Track your intake, watch the scale over two to four weeks, and adjust. The number that produces consistent weight loss on your scale is your actual number.
My detailed personal records date to 2020. Not because I enjoy logging food — though I have made peace with it — but because tracking is the only way to know whether you are actually under your number or just assuming you are.
Assumptions are why people plateau. Data is why people succeed.
The calculator gives you the estimate. The scale gives you the truth. Use both.
I did not invent calorie counting. I did not discover the laws of thermodynamics. What I did was ask a question that most people never think to ask — and then refuse to stop until I had an answer that I could actually trust.
The question was simple: How much can I eat every day and still guarantee myself weight loss?
The answer was my BMR. Stay below it, and you have a margin.
I first lost 112 pounds without prescription weight-loss medication, going from 390 to 278 pounds. I regained 82 pounds, returning to 360, before my 170-pound comeback. I maintain at 190 pounds. Not a diet. Not a program. A number. My number.
And the moment you find yours, the guessing is over.
Every calorie calculator is wrong. And you should still use one. Here’s why the formula is only the beginning — and how to find your actual number.
Read the Guide →The scale isn’t judging you. It’s reporting to you. A conviction-first guide to the most honest tool in fat loss.
Read more →Know Your Number is Skill 01. See how all four skills work together to make fat loss predictable.
See The System →