The Truth About Low-Carb Diets: Are They Right for You?
- Gillian Scerri

- Jul 24
- 3 min read
Updated: Oct 2
Low-carb diets are everywhere, promoted for fast weight loss, blood sugar control, and mental clarity. And yes, they can be useful in the right context.
But what’s often missing from the conversation is when and for whom a low-carb diet is actually appropriate. Let’s break it down.

Who Might Benefit from a Low-Carb Diet?
Low-carb and ketogenic diets have shown strong results for people with:
Type 2 diabetes or insulin resistance
Polycystic ovary syndrome (PCOS)
Metabolic syndrome
Neurological conditions like epilepsy
For individuals dealing with blood sugar dysregulation, a lower carb intake can stabilise energy, reduce cravings, and improve insulin sensitivity, all of which are major wins.
⚠️ But Is Low-Carb the Best Option for Everyone?
Not necessarily.
If you're a generally healthy individual looking to lose weight, going too low-carb can backfire. Here’s why:
Blood Sugar and Cortisol Are Deeply Connected
One of cortisol’s main roles is to help regulate blood sugar. And when you don’t eat enough carbs, especially in the morning or around periods of stress, your body has to compensate.
Low-carb intake → less available glucose
The brain still needs glucose → cortisol rises to convert protein into glucose
Higher cortisol = more stress, poorer sleep, and possible fat storage
So ironically, the very thing many people use to lose weight - cutting carbs - can increase stress hormones and make fat loss harder in the long term.
Low-Carb Can Affect Hormones and Mood
Carbohydrates are crucial for the production of key hormones and neurotransmitters, including:
Serotonin (your “feel-good” hormone)
Tryptophan (an amino acid needed to make serotonin)
Melatonin (important for quality sleep and recovery)
Without adequate carbs, these pathways can get disrupted, leading to poor sleep, mood swings, cravings, and low energy.
The Case for Balanced Carbs
If you're otherwise healthy and want to lose weight sustainably, a better approach might is:
✅ Whole food-based carbs (think: oats, sweet potato, fruit)
✅ Balanced with quality protein and healthy fats
✅ Timed around energy dips or physical activity (like breakfast or post-workout)
Carbs aren't the enemy; they’re a fuel source, and using them wisely can help you maintain hormonal balance, energy, and long-term results.
Low-carb isn’t “bad”, it just isn’t right for everyone. It can work well for certain conditions under guidance, but for most healthy people trying to feel better and lose weight?
Going too low-carb can lead to:
Elevated stress hormones
Sleep and mood issues
Slower metabolism
Unsustainable weight loss
Your best strategy? A balanced approach tailored to your body and lifestyle.
Need help finding what works for you?
As a certified nutrition and lifestyle coach, I help clients find the sweet spot between nourishing the body, balancing hormones, and supporting sustainable weight loss, without extreme restrictions.
👋 Let’s talk about what’s right for you. Book a Free Discovery Call here.
For more expert tips on holistic nutrition, weight loss, and wellness, feel free to browse the rest of my blog posts. You’ll find practical advice on gut health, emotional eating, energy-boosting foods, and more.
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