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The Human Code Issue 1 // Decoding the DNA of the GLP-1 Revolution

Meet The Human Code, a new monthly newsletter from Brand Genetics.

Most business strategy relies on flawless logic, which is precisely why it fails in a real world governed by delightfully irrational human behaviour. Welcome to the new Brand Genetics Newsletter – your monthly antidote to spreadsheet-think, dedicated to revealing the true human motivations that unlock brand growth.

Every month, we will be taking a fresh look at a major behavioural shift and decode the psychology driving it, revealing the human motivations you need to unlock brand growth.

Our first edition  shares our expertise on GLP-1 (weight-loss drugs) . These act as a biological circuit breaker that chemically switches off the reward centres that drive craving. They allow users to bypass the ‘impulse’ phase of consumption entirely, making them much more than just the latest fad.

The impact is already profound. Not only do people eat less food, they actively desire less dopamine-driven gratification. If your brand relies on volume, impulse, or indulgence, the rules just changed, and the ripple effects will hit every sector from healthcare to travel.

Are you ready? Read below to find out more

1 in 8 people worldwide are now living with obesity. Decoding the DNA of the GLP-1 Revolution — how appetite-suppressing drugs are rewriting consumer behaviour.
Decoding the DNA of the GLP-1 Revolution
March 2026
 
1 in 8 people worldwide are now living with obesity — a figure that has doubled since 1990. Without change, the economic cost is projected to hit $3 trillion annually by 2030
(Source: WHO)
The DNA of Growth: The Great Rewiring
We live in an era of evolutionary mismatch: our Paleolithic brains – wired to seek calorie-dense energy – are drowning in a modern environment of infinite, ultra-processed abundance. For decades, consumers have been fighting a losing battle against ‘food noise’: the incessant, biological hum of appetite that willpower alone cannot silence.
Enter the GLP-1 era. These drugs are not just another diet fad; they are a biological circuit breaker. By chemically switching off the reward centers that drive craving, they allow users to bypass the ‘impulse’ phase of consumption entirely. The impact is profound: when you turn down the volume on appetite, you don’t just eat less food. You desire less alcohol. You seek less dopamine-driven gratification.
This is already directly affecting the share prices of food and drink businesses, and the ripple effects are already hitting healthcare, fitness and beauty. They will soon reach travel, pet care, and financial services.
If your strategy relies on volume, impulse or indulgence
the rules just changed
So what? If you want to ensure your brand is winning in this new era, you need to start designing for it. Stop thinking along the lines of our paleolithic biology and start designing your products for our emerging biology before it’s too late.
 
DRIVERS (MOTIVATION)
It’s not just weight loss;
it’s identity reinvention
While the physical results grab headlines, the psychological shift is deeper. Our latest research reveals users aren’t just looking to shrink their waistlines; they are looking to fundamentally rewrite their identity and regain control over a body that previously felt owned by cravings.
Read our latest report →
ENABLERS (OPPORTUNITY)
The mass market era
has arrived
For a long time, the barrier to entry for GLP-1s was high cost and low supply, making it a ‘luxury’ drug. That wall is crumbling. As we look toward 2026, prices are dropping, supply chains are untangling, and administration is getting easier.
Read more in The Economist →
ABILITIES (PSYCHOLOGY & SKILL)
Scrutinizing the system,
not just the self
For years, consumers blamed their own lack of willpower for obesity. Now, the narrative is shifting toward Ability: understanding that the industrial food environment is rigged against human biology. With over half of UK calories coming from ultra-processed foods (UPFs), consumers are waking up to the fact that the food system is broken.
Listen to the BBC Podcast →
We decode the DNA of human behaviour to unlock transformative growth. Our evidence-based model reveals the hidden forces behind consumer choices by diagnosing their Drivers (hidden motivations), eNablers (environmental context), and Abilities (knowledge and associations) to translate deep insight into concrete brand action.