THE TRUTH ABOUT DIMINISHING RETURNS IN FITNESS —AND WHY THAT SHOULDN’T SCARE YOU
- Sara Sutherland

- 2 hours ago
- 3 min read

In fitness, there’s a powerful law quietly at work: the law of diminishing returns. It means that the biggest results come early, and as you get fitter, stronger, and more dialed in… the more you have to do to squeeze out smaller and smaller gains. But rather than discourage you, understanding this principle can motivate you—especially if you're just getting started.
Let’s break this down.
Year One: Minimal Time, Maximum Progress
When you first start training, nearly everything works. You don’t need to train every day, follow an advanced program, or dial in every last macro. It’s possible to put on several kilograms of muscle or lose significant fat by training just a few hours per week.
In your first year, you might train 2 hours per week, 45 weeks of the year—about 90 hours total. And in that time, it’s not uncommon to gain 8–10 kg (17.6–22 lbs) of lean mass or make huge improvements in endurance, flexibility, or strength. That means you’re getting a kilo (2.2 lbs) of muscle for every 9–11 hours of gym time. Efficient, right?
Years Two and Three: Slowing Down, But Still Gaining
As you move into years two and three, you’ll likely find yourself training more—not necessarily because you need to, but because you want to. The gym becomes a habit, and progress feels addictive. But here’s the rub: even if you triple your training time (say, 5 hours per week = 225 hours per year), your gains won’t triple. They might even cut it in half.
Instead of 8–10 kg (17.6–22 lbs), you might gain 5–7 kg (11–15.4 lbs) over two full years. That’s about one kilo (2.2 lbs) of muscle for every 64–90 hours of training—a far cry from the returns you saw in year one.
Years Four and Five: The Margins Get Thinner
Now you’re training harder, longer, and smarter—7+ hours per week, year-round. But the progress? Slower still. Maybe you add 3–4 kg (6.6 - 8.8 lbs) of muscle in two more years. That’s 169–225 hours per kilo (2.2 lbs). You’re investing 2.5x more time per unit of muscle than before, and nearly 20x more than when you first began.
That’s what diminishing returns look like in fitness. The better you get, the harder it becomes to improve further.
So, Why Bother?
Because the early returns are huge. And the later ones? They’re not just about physical change anymore—they’re about mastery, discipline, longevity, and self-respect.
Besides, compare it to how we spend our time. The average person watches over 1,300 hours of TV per year—more time than it takes to make a full five-year transformation in the gym. In contrast, the total training time over five years for someone making significant progress might be just over 1,200 hours.
One year of television = five years of fitness transformation.
So no, you don’t have to train like a pro. You don’t even have to care about the later stages where the return slows down. You can simply show up, consistently, for a short period and see massive results—results that carry over to how you look, move, and feel every single day.
Diminishing returns aren’t a warning—they’re a privilege. They mean you've progressed so far that nature demands more from you. But until you get there, remember: almost all of the return comes from just getting started.





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