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The Deficit Doesn’t Feel Sustainable… Because It Isn’t

ByNicole Doria

I think the word “sustainable” gets used a little too much when we are talking about being in a calorie deficit.

Because anybody who has actually been in one knows… it does not feel like normal life sustainable.

You do not have the energy that you normally have. You are navigating extra things you probably did not have to deal with before… maybe things like meal prep, macro tracking, daily weigh-ins, extra walks.

But that is what happens when you are in a deficit phase. If you want to lose weight, you cannot just keep doing the things you were doing at the weight you were at… or while you were gaining. It is just part of the way it goes.

But that does not mean it feels easy. It does not mean it feels sustainable in the way people throw that word around. You are running your body on less than what it needs. And this road wears people down. It wears everyone down.

And if you are in the middle of a calorie deficit and you are feeling it… please know that what you are experiencing is not just you. It is not a sign that you are doing it wrong.

It is not proof that you are weak or that this will never work for you. It is just the way it is for this temporary phase. Bear with me here ♥️

First… the science of it

A calorie deficit is simple in theory. You eat less than your body needs to maintain its current weight. Your body then pulls from what is stored to make up the difference. That is how fat loss happens.

That is it. That is the whole mechanism.

It is doing exactly what it is designed to do when intake drops below expenditure… it goes to take from storage. Over time, consistently, that is what creates fat loss.

If you want to go deeper on the science behind deficit, deficit rate, and what fat loss actually looks like… Diet, Deficit, Weight Loss covers all of it.

But knowing the science does not always make it feel easier.

And that is where the battery analogy comes in.

The Battery Analogy

Think of it like starting your day with your phone at 70 to 75% battery. And depending on how aggressive your deficit is… maybe you are starting at 85%. Maybe you are starting at 65%. The number shifts. But you are not starting at 100%. That part does not change.

If it is a regular kind of day… maybe you make it through just fine.

But if it is a busy day… calls coming in, notifications nonstop, apps running in the background, and you do not have a charger? That battery is going to drain fast.

Not because the phone is broken. Not because the phone is lazy or unmotivated or lacking willpower. Because the demand is higher than the charge.

That is what a calorie deficit is like. You are asking your body to perform, think, move, regulate emotions, stay disciplined, show up for people, and keep going… while consuming less fuel than it actually needs to do all of that.

Of course energy dips. Of course motivation drops. Of course it feels harder than it did before you started. That makes complete sense.

You Are Just Running on Less

The thoughts that creep in during a deficit…

  • “Why am I so exhausted? Something is not working.“
  • “Why does this feel so hard? I must be doing something wrong.”
  • “What is wrong with me? I must be broken. “

… those thoughts make complete sense when you are depleted. But they are not the full truth.

You are someone who is running a full, demanding life on a reduced fuel supply. And you are still trying.

The struggle you feel in a deficit is not a sign you should quit. It is a sign you are in one. There is a difference.

This is where the energy tank comes in. Take a look at where you are landing most days.

In a well-structured deficit, you might expect to sit somewhere around a 4 to 6 on most days. Slightly fatigued. Only able to do lower energy tasks at certain points. Not feeling your best but still functioning. That is expected. That is the deficit doing its job.

If you are consistently landing at a 2 or 3… irritable, very fatigued, low energy issues showing up regularly… that is worth paying attention to. It may be a sign your deficit is too aggressive, that sleep is suffering, or that life demands are just too high right now to be pushing this hard.

A 1 out of 10 is not a badge of honor. It is a signal.

And I know this is a little bit of a truth bomb here… but many people in a deficit spend more energy beating themselves up over feeling tired than they do actually resting and recovering. Rest in a deficit has to come from sleep and active recovery because it is not coming from food. So protecting those things matters more in this phase than almost anything else.

Image first posted here: MORE Energy During Your Diet

What Maintenance Feels Like by Comparison

Now compare the 75% battery to starting your day at 100%. That is maintenance calories. That is your body fully fueled and ready to meet the day.

Even then… the battery still drains throughout the day. That is normal. Life costs energy. But when you start fully charged and you are refueling consistently… you can keep up with the demands without feeling constantly depleted. You can make it to the end of the day and still feel like a person.

Maintenance gets a bad reputation. People think it means they are not trying or not progressing. But maintenance is where your body breathes. It is where habits deepen. It is where you practice doing this for the rest of your life without the deficit grinding you down.

So What Do You Actually Do With This?

What does not work is expecting 100% output when you are operating on 70 to 75% battery. You have to stop grading yourself on the same rubric you used when you were fully fueled. That is not lowering the bar. That is being smart about the season you are in.

And sometimes the smartest and bravest thing you can do in a deficit is lessen the load.

This does not mean quitting. It means recognizing that the goal is still there waiting for you even if you need to ease up a little right now. Sometimes the goal shifts from “I must keep losing” to “I will not lose progress.” And thank goodness that is an option… because it keeps you in the game.

A few things worth thinking about:

  1. The rate of your deficit matters. A smaller deficit is harder to feel and easier to sustain. If you are white-knuckling every single day… it might be worth asking whether the deficit is too aggressive via lowered consumption or higher activity. Diet, Deficit, Weight Loss breaks this down well.
  2. The little things add up more than you think. When your energy feels like it’s dropping to a point you can’t deal… sometimes those little bites licks and taste come in and let me tell you…. they matter more in a deficit than they do otherwise.  It’s Really the Little Things: Little Bites, Licks, Tastes is a good one.
  3. Big feelings are real and they show up here. If you have ever cried over something that probably would not have registered on a regular day… you are not alone. I Am Not Okay: Big Feelings & Weight Management is for you if they are.
  4. Lessen the Load, If Starting Feels Heavy, Start Smaller and Is it Crazy to Try to Lose Weight Now? are there if you are questioning whether to pull back, how to do that or to keep going at all.

And 5 Lessons Learned from Losing 135 lbs is one I still go back to… because so many of those lessons came from the moments in a deficit where I wanted to quit but did not.

Takeaway

This is not about willpower or toughness. It is about aligning your expectations with the reality of what a deficit actually does to a body… and making sure your “battery” matches the workload you are asking it to carry.

You are not failing because the deficit is hard.

You are just human. Running on less.

Trying anyway. And that is actually a lot.

With Love, Coach Nik ♥️

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