True Calories

How Many Calories Do You Actually Need?

Pick a goal weight. The math is simpler than you think.

Here's an exercise I walk patients through that cuts through a lot of the confusion around calories. Bear with me — it sounds technical at first, but it's actually one of the most useful and straightforward things I can show you.

Start With Your Goal Weight

Pick a number. Let's say you want to weigh 150 pounds.

Now we'll set some baseline conditions: a 70-degree environment, light daily activity — a walk here and there, semi-retired lifestyle. And for this example, we'll assume either a male or a post-menopausal female, because hormonal factors in other women add variables we'd need to adjust for.

Under those conditions, here's the number that matters: **5 calories per pound of goal weight, per day.**

150 pounds times 5 equals 750 calories a day.

That's your target. That's the number your body needs to maintain a weight of 150 pounds in those conditions.

Want to weigh 200 pounds instead? Multiply by 5. You get 1,000 calories a day.

Now, when I say 750 true calories, I mean it. A big bowl of pickles or frozen fruit — yes, those have calories, but fiber and water content change what your cells actually absorb. The math accounts for the real caloric value your body is working with, not just what's on the label.

The 100-Calorie Problem

Here's where it gets interesting. You'll see studies that say: if you eat an extra 100 calories a day, that's 3,000 extra calories a month. One pound gained. Twelve pounds in a year. One hundred twenty pounds in a decade.

Mathematically, that should mean people who overeat by a modest amount should keep gaining weight indefinitely — all the way to 500, 600, 700 pounds or more.

But that's not what happens. Why?

The Heavier You Are, the More You Burn Just Moving

When a person carrying 400 pounds walks across a parking lot, they're not strolling. By the time they reach the car, they're winded, sore, and working hard. And that's the key point — they burned twice the calories making that same walk that I would at my weight.

Your body has to move mass through space. More mass requires more energy. It's physics. As weight increases, so does the caloric cost of every single movement. That's the natural brake on the system — it's why people don't just keep gaining weight forever. At some point, the body is burning enough extra calories through movement alone that it reaches a new equilibrium.

To put it another way: if you strapped a 200-pound weight to my back and asked me to walk to my car, I'd make it about 50 steps before I was calling for help. I don't have the muscle and skeletal structure to carry that kind of load. A person who weighs that much has built that capacity over time — but they're also paying an enormous caloric tax on every step they take.

What This Means for You

The 5-calorie-per-pound formula gives you a useful starting point for understanding the relationship between what you eat and what you weigh. It's not the complete picture — activity level, environment, hormonal factors, and the type of food all adjust the equation. But as a foundation, it works.

And when you see it laid out this simply, the path forward gets a lot less mysterious.

Come in and let's run your numbers.

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