25 May Low-Carb vs Keto for Reversing Diabetes: What’s Better?

If you’ve got type 2 diabetes and you’re trying to make lifestyle changes, it can feel like you’re being shouted at from every direction.

Low-carb. Keto. Mediterranean. Plant-based. Calories. Fasting.

And you’re sat there thinking: Where do I even start? And what if I do it wrong?

In this post, I’m going to help you understand the difference between low-carb and keto, what nutritional ketosis actually means, and why these two approaches might not be as different as you think when it comes to improving your blood sugar.

But I also want to talk about the bit that doesn’t get enough attention: not just how to get your blood sugar down quickly, but how to keep it down.

Because in my experience, that’s where people either build real health – or they end up swinging from one extreme to another and finding themselves back where they started.

If you’d like support and a clear starting point, you can join my next live webinar, The Reset Event, by clicking here.

First, a quick reminder: I’m not here to push you into a camp

I’m Nerys, I’m a GP, and I’ve been helping people improve blood sugar and reverse type 2 diabetes with lifestyle changes for nearly a decade.

I work with people right across the spectrum:

• Some do brilliantly with a gentle low-carb approach
• Some need something more structured and more restrictive for a period of time
• Some people try keto, get great results, and then struggle to maintain it when real life kicks in

So my aim isn’t to tell you there’s one “best” diet.

My aim is to help you choose an approach you can actually stick with.

What does “low-carb” actually mean?

This is where most of the confusion starts.

When people say “low-carb”, they’re usually not talking about one exact diet.

Low-carb is a spectrum.

It simply means you’re eating fewer carbohydrates than the standard modern diet.

For most people, that means cutting back on things like:

• bread, pasta, rice, potatoes
• breakfast cereals
• biscuits, cakes, sweets
• sugary drinks and fruit juice
• snacky, ultra-processed foods that are basically carbs in disguise

And instead, you’re building meals around:

• protein (meat, fish, eggs, Greek yoghurt, tofu if that’s your thing)
• non-starchy vegetables
• healthy fats to help you feel full and keep blood sugar steadier

Why low-carb often helps blood sugar

The reason low-carb can work so well for type 2 diabetes is pretty straightforward:

Carbohydrates have the biggest impact on blood sugar.

So when you reduce them, you often reduce the spikes.

What does “keto” mean (and what is nutritional ketosis)?

When people say “keto”, they usually mean a ketogenic diet.

Keto is essentially a more restrictive version of low-carb.

The goal isn’t just “lower carbs.” The goal is to lower carbs enough that your body goes into nutritional ketosis – where you start producing ketones and using fat as a major fuel source.

And just to be clear:

Ketosis isn’t a moral achievement. It’s not a badge.

It’s simply what happens when carbs are low enough for long enough.

For many people, that means keeping carbs very low – often somewhere around 20 to 50 grams a day (although it varies person to person). That’s why keto can feel so different: it’s a much tighter set of boundaries.

Low-carb and keto overlap more than you think

Here’s the bit that surprises people.

Low-carb and keto have a lot of overlap.

In both approaches, you tend to end up eating:

• more protein
• more veg
• more whole foods
• fewer sugary and starchy carbs

And in both approaches, blood sugars often improve because you’re reducing the biggest driver of spikes.

So the real difference isn’t that one is “good” and one is “bad.”

The difference is usually:

• how low you take the carbs
• how quickly you want results
• how restrictive it feels in your real life

The real question: restriction vs sustainability

This is where the conversation usually gets heated.

People argue about what’s “best”, when the real issue is the trade-off between restriction and sustainability.

Why keto can work brilliantly (especially short term)

A stricter approach like keto can work brilliantly in the short term:

• blood sugars can come down quickly
• appetite often drops
• cravings can quieten once you get through the initial withdrawal
• it can feel like “Finally, something is working”

The downside: when strict breaks, it can break with a snap

Then real life turns up.

And people can do strict – until they can’t.

And when it breaks, it often breaks with a snap:

• “I’ve blown it, so I may as well eat everything.”
• guilt
• panic
• the hunt for the next plan

If you tend to be all-or-nothing, extremes can be risky – not because they never work, but because the rebound can be brutal.

Your body likes stability.

Big swings tend to trigger big responses: more hunger, more stress, and that feeling of being either “on it” or failing.

Getting your blood sugar down matters – but keeping it down is what changes your health

Yes, lowering blood sugar quickly can be motivating.

But keeping it down is what changes your long-term health.

I’ve seen people get into remission.

And I’ve also seen people lose it again because the plan that got them there wasn’t a plan they could live with.

So instead of labels, think in levels.

You’re not joining a camp.

You’re choosing a strategy you can repeat on an ordinary week.

So which is better for reversing diabetes: low-carb or keto?

For most people, the honest answer is:

The best approach is the one you can sustain.

Here’s a simple way to think about it.

Keto can suit you if:

• you feel calmer with firm rules
• you want a structured reset
• you’re happy with tighter boundaries for a period of time
• you have a plan for what happens when real life kicks in

Moderate low-carb can suit you if:

• you need flexibility
• you eat with family and want meals that work for everyone
• you want something that feels realistic long term
• you’re aiming for steady progress rather than a rapid reset

A phased approach often works best

Plenty of people do best with a phased approach:

• tighter at the start to get momentum
• then easing into a sustainable low-carb “forever” version

You’re allowed to adjust.

You’re allowed to change your mind.

There isn’t a keto police or a low-carb veto committee coming to tell you you’ve done it wrong.

The foundations that matter most (whichever route you choose)

Whichever route you choose, the foundations overlap.

Start here:

• protein at every meal
• plenty of non-starchy veg
• be intentional with carbs (not mindless)
• include healthy fats so you feel satisfied
• build a plan for the version of you who has a normal life – not the version of you who’s perfectly motivated

 

Choose a starting point, test it properly, and then adjust

Here’s the simple truth.

You do have to choose a starting point.

Otherwise you end up half-doing everything and never really learning what works for your body.

But you’re not signing a contract.

Give your approach a proper go, watch what happens to your blood sugars and how you feel, and then adjust.

If you focus on what you can repeat – not what you can survive – you’ll get much further than the person who’s constantly starting over.

Want a clear plan (without the noise)?

If you found this helpful and you want a clear, practical plan for lowering your blood sugar in a way that fits real life, come and join my next live webinar, The Reset Event. Register by clicking here.

Learn more by watching the full video on YouTube:

You don’t need the strictest plan.

You need the one you can live with – and keep coming back to.