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A calmer look at what’s really happening on GLP-1 medications after 40

If you’ve started a GLP-1 medication, one of the first things you notice is this:

You’re just… not that hungry anymore.

And at first, that feels like relief.

Less hunger should mean easier weight loss.

But then something doesn’t quite line up.

The scale isn’t moving the way you expected.
Or it moves quickly… and then slows down.
Or you feel more tired than you thought you would.

And quietly, a question starts to form:

If I’m barely eating… why isn’t this working better?

If you haven’t read it yet, this is explained more fully in What No One Tells You After You Start GLP-1 Medications.

What Most People Assume

It seems logical:

• Eat less
• Lose more weight

But your body—especially after 40—doesn’t work that simply.

Eating less is not the same as supporting your body.

What’s Actually Happening When You Are Not Hungry But Not Losing Weight

GLP-1 medications reduce appetite.

But they don’t guide what you eat.

So many people unintentionally fall into this pattern:

• Skipping meals
• Eating very small amounts
• Struggling to prioritise protein
• Choosing whatever feels tolerable in the moment

And over time, this creates a different problem.

Not overeating…

Under-supporting your body.

Why This Matters More After 40

As we get older, the body becomes more sensitive to:

• Low protein intake
• Muscle loss
• Slower recovery

Which means:

Weight loss without structure can come at a cost.

This is where guidance matters.

As Dr. Eric Westman often highlights in clinical practice, food quality and composition still matter—even when appetite is reduced.

Less hunger doesn’t remove your body’s needs.

Signs You Might Be Under-Eating (Even If the Scale Is Moving)

This part is often overlooked.

You may notice:

• Low or unstable energy
• Feeling weaker than usual
• Hair thinning
• Feeling cold more often
• Plateaus that don’t make sense

These aren’t failures.

They’re signals.

Why “I’m Barely Eating” Isn’t a Strategy

It can feel like progress.

But in reality, it often leads to:

• Loss of muscle (not just fat)
• Slower metabolism over time
• Increased fatigue
• Less sustainable results

Especially on GLP-1 medications, where eating becomes less intuitive, structure becomes more important—not less.

What Actually Helps (Without Overcomplicating It)

You don’t need a strict plan.

But you do need a simple way to support your body.

Start here:

• Eat even when you’re not very hungry (small, intentional meals)
• Prioritise protein first
• Keep meals simple and repeatable
• Don’t rely on the scale alone for feedback

This isn’t about doing more.

It’s about doing what matters.

A Simpler Way to Think About It

Instead of asking:

How little can I eat?

Try asking:

What does my body still need, even now?

That shift changes everything.

If this already feels a bit unclear…

If you’re not sure what or how to eat at this stage…

I’ve put together a short, simple guide that walks you through it calmly.

You’ve probably noticed that GLP-1 medications are everywhere right now. Patients are asking about them. Friends are using them. Headlines are nonstop. However, my belief is to use lifestyle first before tools.

For nearly three decades, Dr. Westman, Professor Tim Noakes and other leading health teachers have taught a lifestyle-first approach to metabolic health. Nutrition is foundational. Sleep, movement, and habits matter. That has not changed.

But acknowledging the power of lifestyle does not mean ignoring the role that medication can play in the right situation.

This is where things start to feel unclear.

For some people, GLP-1s may be a helpful tool. The real question isn’t “lifestyle or medication.” It’s this: How do you use a tool without neglecting the foundation? Which is why I say, lifestyle first before tools.

Appetite suppression alone doesn’t guarantee nutritional adequacy. Rapid weight loss doesn’t automatically mean muscle or metabolic health are protected. And what happens in the early weeks can influence long-term outcomes.

This is a conversation that deserves nuance, not hype, and I’ll be addressing it in more detail in the weeks ahead.

The food we eat is what ensures a stable blood sugar.

Yes, what you eat matters. But sleep, stress, movement, light exposure, and muscle mass play an equally powerful role in blood glucose control.

If your energy crashes mid-afternoon, if you struggle with cravings, or if your fasting glucose keeps creeping up, the issue may not be your diet alone.

Here’s what actually supports stable blood sugar — backed by physiology, not trends.

The Fastest Ways to Improve Stable Blood Sugar

If you only focus on a few things, start here:

• Prioritise 7–9 hours of consistent sleep
• Walk for 10–15 minutes after meals
• Build lean muscle with resistance training
• Eat adequate protein, especially in the morning
• Reduce chronic stress
• Get natural morning light

These habits regulate insulin sensitivity and reduce glucose spikes without extreme dieting.

1. Sleep: The Foundation of Stable Blood Sugar

Poor sleep increases insulin resistance — sometimes within days.

When sleep is compromised:

• Cortisol rises
• Hunger hormones shift
• Cravings increase
• Blood sugar regulation worsens

You cannot maintain stable blood sugar on 5–6 hours of sleep.

Simple upgrades:

• Fixed sleep and wake times
• Dark, cool bedroom
• No screens before bed
• Morning sunlight exposure

Sleep is not optional. It’s metabolic maintenance.

2. Post-Meal Walking Reduces Glucose Spikes

A short walk after eating improves stable blood sugar by helping muscles absorb circulating glucose.

This reduces the need for large insulin responses.

You don’t need intense workouts.

You need:

• 10–15 minutes
• Gentle movement
• Consistency

This one habit alone can significantly improve post-meal glucose control.

3. Muscle Mass Improves Insulin Sensitivity

Muscle is one of the most powerful regulators of stable blood sugar.

More lean muscle means:

• Greater glucose storage capacity
• Improved insulin response
• Lower long-term metabolic risk

Aim for:

• 2–3 resistance sessions per week
• Progressive strength development
• Full-body compound movements

Muscle is not cosmetic. It’s metabolic protection.

4. Stress Directly Impacts Blood Sugar

Chronic stress raises cortisol, which increases blood glucose — even if your diet is controlled.

If stress is high:

• Glucose release increases
• Insulin sensitivity decreases
• Fat storage becomes easier

Strategies that support stable blood sugar include:

• Breathing exercises
• Time outdoors
• Reducing constant digital stimulation
• Clear work–rest boundaries

You cannot out-diet chronic stress.

5. Protein in the Morning Sets the Tone

A protein-rich breakfast reduces glucose variability across the entire day.

Protein:

• Slows gastric emptying
• Improves satiety
• Reduces blood sugar spikes

What you eat first matters.

Stable blood sugar is easier to maintain when your first meal is balanced.

Stable blood sugar is built through:

• Consistent sleep
• Regular movement
• Strength training
• Stress regulation
• Circadian alignment

Food is of primary importanance. But lifestyle determines whether it works.

If you want steady energy, fewer cravings, and long-term metabolic resilience, build the foundation first.

What people THINK is true about weight loss stalls

• A stall means keto has stopped working.

• If my weight isn’t changing it means I am doing something wrong.

• I need drastic changes to break a stall.

• Exercise is the key to getting the scale moving.

• If I’m stalled I need to restrict my food more.

5 Tips to deal with food pushers over the holiday times and forever. Well-meaning people who say things like, “One piece won’t hurt…” “I made this specially for you….” “Come one, it’s the holidays….” in order to get you to eat off your keto diet.

Express gratitude

“Thank you so much for making this. I appreciate you making the holidays so special. I’m going to fill up on a few other things though.”

Be honest – politely

“I notice I feel better when I stay away from sugar and starch. I’m sure that’s delicious though.”

Delay the matter

“I’m pretty full right now, but maybe I’ll try that later.” (Even if you have no intention of having it later. Most people will forget anyway!)

Change the subject

“Wow that looks amazing. Everything here looks great! Aren’t the decorations beautiful?”

Be firm if needed

“No thank you,” is a complete sentence. You are not obligated to defend or explain your choices when you deal with food pushers..

Holidays on the keto diet during the holidays don’t have to mean feeling left out or deprived. With some thoughtful planning, open communication, and a mindset shift, you can enjoy the season – parties, feastings, laughter and all – while you stay on your keto lifestyle.

Shift your mindset

First, remember: the holiday season is about connecting with people, making memories, and celebrating together – food is part of that story, but it doesn’t have to be the main event. Try planning holiday activities that aren’t centered on eating: go for walks, play games, watch festive movies, or help decorate. It shifts the spotlight from the buffet to the people you’re with.

Also, if you do slip up – maybe you take a few higher-carb bites – that’s okay. One meal or day off plan doesn’t erase your progress. Forgive yourself, get back on track with your next meal, and avoid letting one miss-step turn into days or weeks off plan.

Finally, remind yourself why you chose keto: better health, more energy, managing your weight – keeping your reasons whyto the front and centre, helps you steer your choices.

1. Start keto right and keep it simple
2. Have realistic expectations
3. Don’t obsess over the scale
4. Be prepared for keto flu
5. Give your kitchen a makeover
6. Know how to order in restaurants
7. Get professional guidance on medication

SIMPLICITY – Don’t turn keto into a full time job. Eat fatty proteins, a small amount of non-starchy vegetable and stay away from nuts, nut butter and ‘keto treats’. For the best results keep your carbohydrate intake below 20 total grams (not net) per day.

REALISTIC – Keto is extremly powerful but it doesn’t always improve everything as quickly as you want it to. Be patient and keep going even if you weight loss is a bit slow. Or if your blood pressure or blood sugar don’t improve right away. Give it time!

OBSESSION – Don’t let the scale play head games with you! Weight loss isn’t linear. Some weeks and months you’ll lose a lot and some times you will not lose at all. This is normal. It doesn’t mean keto isn’t working. Give your body time to adjust. Look at your weight loss trends over the long term. Don’t let the daily fluctuations disappoint you.

KETO FLU – If you’re brand new to keto you might experience headaches, muscle cramps or other issues as your body adjusts to eating this way. Most of the time just getting more SALT will help. (But be careful if you take meds for diabetes of high blood pressure. See the last point below.)

PANTRY PURGE – Do a kitchen cleanout and pantry purge! To start keto right it is vital that you get rid of all the high carbohydrate foods in your pantry, fridge, freezer and kitchen cupboards. Don’t wait to finish them. Ditch them and restock them with low carbohydrate foods you enjoy.

DINING OUT – Eating keto doesn’t mean saying goodbye to dining out. You can find something low in carbs anywhere. Ask for modifications or substitutions. (Skip the bread roll, have a side salad instead of potato chips.) Or order something that is already keto friendly like a chicken salad.

MEDICATION – If you take medication for something like diabetes or high blood pressure, work with a medical practitioner who understands the ketogenic way of eating, who can help you adjust the doses safely.

We’re three months into the new year. If you were off plan a bit during the holidays, have you gotten back to following your low-carb or keto diet yet?

If you want to change your health, you have to change what you put on your plate. It’s that simple.

If yes, great! Keep going!

If not, start now. Today.

What is one small thing you can do, one small action you can take, that will be the catalyst?

Do you need to do some grocery shopping?

Should you do some protein and vegetable prep so there’s a variety of keto-friendly foods for you to grab in a pinch?

What about doing a pantry purge? Are there some high-carb foods lingering in the cupboards that you’d be better served by putting in the trash insted of eating them? (You’re not “wasting food” or wasting money by doing this. The money is already spent. You eating foods that move you further from your goals won’t put it back in your pocket.)

Don’t wait another day to get back to low-carb keto. And don’t leave things to chance. Stock your kitchen with low-carb keto foods you enjoy. Remind yourself of how much better you feel physically and psychologically – when you feel yourself well.

You’re worth it.