After about 8 weeks of sticking hard to keto, I started bringing some carbs back—mainly around my workouts.
I’d already hit the goals I was chasing: dropped weight, built a better endurance base, and cleared out some of the junk from my system.
But now, I was shifting into a new phase—one that demanded more speed and intensity.
And that’s where I stopped following the “keto forever” crowd.
Look, I’m not here to tell you keto is bad. I’m telling you it doesn’t have to be everything.
I see it like a wrench or a hammer. Use it when it fits. Then put it back in the box when you need something else.
Now let me share with you some strategies to help you make the most out of the keto diet while also logging the miles strong.
1. Keto as a Reset Button
I’ve used keto like a reset switch. After the holidays or a lazy offseason, when I’m carrying a few extra kilos (thank you, nasi goreng and Netflix), I go low-carb and high-fat for a few weeks.
It never fails—I lose some fluff, get my appetite under control, and even stop craving sweets.
Even now, I’ll go keto for 3–4 weeks a few times a year. I always give myself an “off-ramp,” though. No crash-and-burn. I plan my way out of it, just like I planned my way in.
2. Carb Timing for Performance Gains
When I started doing serious workouts—track intervals, tempo runs—I opted for the carb cycling approach.
On easy or rest days, I’d stay low-carb. But before hard efforts, I’d time a little carb boost.
I’m talking 20–30g, like half a banana or a slice of toast, about 30–45 minutes before running.
It made a massive difference. I was still running mostly on fat, but that little hit of glucose gave me enough spark to crush workouts.
The science backs it too: Some studies suggest having 15–30g of carbs before a tough workout—even while on keto—can help performance without totally kicking you out of ketosis.
I’ve felt that myself. It’s like tossing jet fuel into a diesel engine… just for the interval session.
3. What Happens After Keto?
This part trips a lot of runners up. They finish keto, feel amazing, then dive headfirst into burgers and donuts.
Boom—weight’s back. Sometimes with interest.
I didn’t want that. So I shifted into a “low-carb-ish” maintenance phase—a whole food plan with moderate carbs (~100–150g/day). I brought back fruit, some grains, even dessert once a week—but the ultra-processed junk stayed out.
That helped me hold my new weight within 2–3 pounds for over a year.
That’s why one of my favorite mottos is: “Keto to lose. Low-carb to maintain.”
This should become your game plan.
4. Listen to Your Body (Not Diet Dogma)
As I reintroduced carbs, I paid close attention. That first slice of sourdough? Magical. But what did my next run feel like? Was I bloated? Was my energy weird?
Turns out, I digest rice and potatoes like a champ—but too much pasta slows me down.
Maybe it’s the gluten. Maybe it’s blood sugar spikes. Doesn’t matter. What matters is noticing, adjusting, and finding your groove.
Your diet isn’t your religion. It’s your toolbox. Keto is one tool. Carbs are another. Learn to switch them out like a smart mechanic.
5. No More All-or-Nothing Thinking
Here’s a trap I fell into: guilt. I’d eat some rice and think, “Did I just ruin everything?” That’s diet-culture nonsense.
Your metabolism isn’t a glass house—it’s a flexible machine. If I had a big birthday meal, I’d just go back to low-carb the next day. No shame. No spiral.
Some experts even say that occasional high-carb days can prevent the metabolic slowdown that comes with long-term dieting. Makes sense. The body likes variety. So do we.
6. Hydration & Electrolytes
When you ditch carbs, your body dumps water and sodium fast.
Glycogen holds water, and when it’s gone, your kidneys start flushing like crazy. That’s why you feel dizzy, get cramps, and hit that “keto flu” wall if you’re not careful.
What saved me? I started drinking 1–2 cups of broth or a sugar-free electrolyte drink every day.
Salted everything.
Before a morning run, I’d literally take a pinch of sea salt, toss it back with water—sounds weird, works like magic.
Another keto runner told me, “I slam a teaspoon of salt before I run.” Sounds savage, but it gets the job done.
If you want to avoid feeling like roadkill during your runs, get serious about electrolytes. LMNT or Nuun are solid.
Or make your own with water, salt, and lemon. Don’t skip this—hydration isn’t optional on keto. It’s everything.
7. Give It Time (Seriously)
Your body isn’t going to flip a switch and start running like a machine on fat overnight.
When I first started keto, I turned all my intervals into slow jogs.
My long runs? They felt like slogs. But that’s part of it. You’re rewiring your engine.
Expect your pace to drop.
If you normally run 8-minute miles, don’t be shocked if you’re pushing 9:30 or slower.
A friend of mine told me that it took two months before <5 miles didn’t wipe them out.
For me, by week 5, my pace was only about 15–20 seconds slower than pre-keto—and it kept getting better.
By week 8, endurance runs felt normal again.
Stick to Zone 2 runs. Keep it conversational. This is perfect if you’re in a base-building phase anyway. Be patient. The engine will adapt.
8. Fuel Up—Don’t Starve
Here’s the trap: keto can kill your hunger, and suddenly you’re eating like a bird.
Not good.
You’re still a runner.
You still need calories.
Keto isn’t a crash diet—it’s just eating differently.
In fact, early on, you might need more calories. Fat isn’t as quick a fuel source as carbs. I leaned hard on fats and protein.
My go-to: 3-4 eggs in butter, avocado, big-ass salad with grilled chicken and olive oil, then a fatty dinner—steak, salmon, veggies drowned in sauce.
If I was dragging, I’d slam some almond butter or add more olive oil.
9. Fat Is Your Friend—Get Over It
If you’ve spent years hearing “fat = bad,” this is gonna feel awkward.
But on keto, fat is fuel. Skimp on it, and you’ll hate life.
I used to avoid chicken skin and full-fat cheese. Now? Bring it on. I’d eat avocados with a spoon, cook with ghee or butter, drown my salads in oil, and choose fatty meat over the lean stuff.
It felt indulgent, but my body finally started humming once I gave it what it needed.
You’re aiming for something like 75% fat, 20% protein, 5% carbs. That’s a lot of fat. If you cut fat and carbs, you’re basically starving—and that’s not sustainable.
10. Tweak Your Training Early
Weeks 1–3? Forget sprints. Forget crushing intervals. Your body is still learning to burn fat.
This is base-building time.
Focus on slow aerobic miles, good form, or cross-training. I added easy bike rides and short strength workouts when energy allowed.
After a few weeks, you’ll start feeling more stable. That’s when I slowly brought back intensity—fartleks, hill sprints, etc. No pressure, just play.
Keep an eye on your heart rate. Early keto runs might feel harder even at slower paces.
That’s normal. I wore a HR monitor and aimed to stay in Zone 2. Watching my pace improve at the same HR was one of the best signs I was adapting.
11. Have a Backup Plan
Sometimes, you’ll bonk. It happens. Especially on long runs >90 minutes. That’s why I always carried a couple of energy chews and some salted nuts—just in case I needed a lifeline.
Some folks use MCT oil for a quick fat-based boost. I’d blend a tablespoon into my coffee before long runs. It worked. Gave me a little edge without knocking me out of ketosis.
And here’s the deal—if you’re in a race or a key workout and feel like trash, take a gel. It won’t undo all your progress. You’re not going to explode or fall out of keto permanently. One small carb hit in the right moment can save your day. Just use it sparingly and intentionally.
12. Recovery: Don’t Skimp Here
On keto, recovery takes a little more intention.
Without carbs, you lose that quick glycogen refill, and your cortisol might stay higher longer. I noticed I needed more sleep—like an extra hour some nights—and I listened.
I swapped high-stress workouts for gentle yoga on rest days, and I doubled down on post-run nutrition: spinach, avocado, broth—the works.
Protein still matters big-time.
I’d mix whey protein with coconut milk or almond butter after workouts. No fancy carb-protein blend—just real food with real fat. And it worked. I bounced back without the soreness dragging me down.
Every now and then, I’d throw in a mini carb “refeed”—nothing crazy.
Once, after a brutal 18K run, I had a grapefruit and some Greek yogurt. That gave me a solid 30g of carbs, plus potassium and a mental lift. I was back in ketosis within a day, no drama.
These refeeds weren’t cheat meals—they were strategic reloads.
If you’re dragging for days, don’t white-knuckle through it. Take the extra rest day. Or give yourself a little carb bump. There’s no badge for suffering.
The Big Picture: Listen Up, Then Listen In
Hydrate like crazy. Be patient. Load the fat. Pull back on speedwork.
And above all—pay attention to what your body’s telling you.
Keto for runners isn’t about strict rules. It’s about tuning in.
I’ve seen some folks thrive on textbook keto (75% fat, 20% protein, 5% carbs). Others—myself included—need a little wiggle room. More protein. Occasional carbs. More sleep. Less ego.
This isn’t a one-size-fits-all diet. It’s a tool.
And once you learn how your body responds, you’ll start running better, recovering stronger, and feeling less like you’re fighting against yourself.
What’s Next: Let’s Eat!
Alright, enough talk—time to eat. 🥓🥬
If you’re like me, you probably hit that early keto moment of “Okay cool, but what do I eat besides bacon and eggs?” Don’t worry—I’ve got you.
What started as carb swaps turned into a whole new way of cooking.
I found meals that tasted awesome and actually worked for my training. And I still cook a lot of them today—keto or not.
Check this post for 30 of my go-to low-carb, high-fat meals that kept me going through long runs, lazy mornings, and everything in between.
These are real meals—nothing bland, nothing boring.
Whether you’re a kitchen ninja or just trying to survive weekday meal prep, there’s something here for you.
