Hacking Your Biology With Nutrition
Martina Johansson (SWE)
M.Sc Bioengineering, Science editor, Author and Biohacker
Martina is a science savvy health enthusiast with a passion for ketogenic diets, natural hormone optimization and the connection between food, brain and behaviour. She has authored 5 books, is an active blogger and is always looking for ways to help people find their unique path towards health.
Audio Player
This talk reveals how nutrition is a powerful tool for hacking human biology,
We actually have the ability to influence our own genes. We can switch them on and off. Everything we want to do will be a lot easier if we learn to program our genes from within and live a longer, healthier life.
Summary
- Epigenetics allows for the manipulation of gene expression through nutrition and lifestyle, enabling the activation of longevity genes while silencing those linked to chronic disease. - Advanced Glycation End Products (AGEs) result from high blood sugar, causing protein damage that leads to visible aging and serious conditions like dementia or stroke. - Chronic low-grade inflammation often stems from gut issues caused by processed foods and additives, which can eventually lead to cancer and autoimmune disorders if left unaddressed. - A ketogenic diet shifts the body into fat-burning mode by lowering insulin, which helps reduce systemic inflammation, supports DNA methylation, and promotes cellular cleanup via autophagy. - Developing metabolic flexibility through diet cycling and personalized nutrition is more effective than strict adherence to one plan, as needs vary by activity level and gut flora.
Article
Hacking Your Biology With Nutrition
At Biohacker Summit 2017 Stockholm, Martina Johansson Argued That Food Was Not A Lifestyle Accessory But A Biological Operating System
In a brief but densely argued presentation at **Biohacker Summit 2017 Stockholm**, held on **19 May 2017 in Stockholm, Sweden**, the Swedish bioengineer, science editor, author and biohacker **Martina Johansson** offered a vision of nutrition that reached far beyond calories, weight loss or dietary fashion. Her talk, **“Hacking Your Biology With Nutrition: Epigenetics, Ketosis, & Gut Health,”** framed food as one of the most powerful tools available for reshaping human biology from the inside out.
Johansson’s central claim was both radical and increasingly familiar in health circles: that what people eat can influence gene expression, inflammatory signalling, metabolic flexibility and even the body’s capacity for cellular repair. Nutrition, in her telling, was not simply fuel. It was information.
The Body As Messenger, Not Machine
Johansson urged the audience to rethink symptoms not as isolated malfunctions to be suppressed, but as meaningful biological messages. “**Your body is continuously communicating with you, but you have to learn what to listen for,**” she said. “**Think of disease as dis-ease. It is an alarm clock telling you that something is wrong in your signaling system.**”
That line captured the philosophical spine of the session. Rather than viewing chronic illness as an inevitable part of ageing, Johansson presented it as a downstream effect of disrupted signalling, nutrient deficiency, metabolic dysfunction and inflammatory overload. In her view, many conventional interventions merely dulled the alarm.
“**Very few pills actually fix something,**” she said. “**They are designed to block and mute chemical signals in the body, but we should be listening to the underlying messages the body is sending us instead.**”
It was an argument likely to resonate in a biohacking crowd often sceptical of one-size-fits-all medicine, yet Johansson grounded it not in slogan but in biochemistry.
Epigenetics And The Promise Of Nutritional Control
One of the most compelling parts of the talk centred on **epigenetics**, the study of how behaviour and environment influence the expression of genes. Johansson described this as a space of possibility, a realm in which inherited risk did not automatically become destiny.
“**Our genes are just like you and me, with a need for unique self-expression,**” she said. “**You cannot express your DNA properly if you are dealing with nutrient deficiencies and a high intake of processed foods.**”
She focused in particular on **methylation**, a biochemical process often described as a switchboard for gene activity. According to Johansson, nutrition could support this process in ways that helped silence harmful genetic tendencies while activating pathways associated with repair, detoxification and longevity. The implication was clear: human biology was not fixed code, but responsive software.
For an audience accustomed to quantified-self devices and futuristic interventions, Johansson’s message carried a quiet provocation. The first hack, she suggested, might still be what is on the plate.
The Slow Violence Of Sugar Damage
Johansson also turned to **Advanced Glycation End Products**, or **AGEs**, which she described as a form of protein damage driven by elevated blood sugar. The chemistry is familiar to anyone who has watched bread brown in a toaster or meat char in a pan. Inside the body, she argued, a similar process can stiffen tissues, impair function and accelerate visible and invisible ageing alike.
The consequences, in her account, stretched well beyond wrinkles. Protein damage linked to glycation could contribute to dementia, stroke and broader cellular decline. This was one of the talk’s darker themes: that modern dietary patterns may age people not only cosmetically, but structurally.
Johansson’s point was not merely to fear sugar, but to understand the cumulative effect of metabolic excess. High blood sugar was not just a blood marker. It was a chemical environment.
Ketosis As A Tool For Repair
If sugar excess represented one side of the metabolic ledger, **ketosis** represented the other. Johansson made a forceful case for ketogenic diets as a means of lowering circulating insulin, shifting the body into fat-burning mode and creating conditions for **autophagy**, the cellular “cleanup” process through which damaged components are identified and recycled.
She linked this state to some of the same benefits often associated with caloric restriction, particularly improved longevity signalling and reduced systemic inflammation. Entering ketosis, in her account, was not simply about weight management. It was about improving the body’s proofreading capacity.
“**The key is metabolic flexibility,**” she said. “**Teach your body to navigate different energy systems so you are not addicted to glucose and can tap into your own stores whenever you need to.**”
This idea of flexibility mattered. Johansson did not present one rigid nutritional doctrine as universally correct. Instead, she argued for a body capable of moving efficiently between fuel sources, responsive to context, activity and individual physiology.
The Gut As The Seat Of Inflammation
Another major theme was the **gut**, which Johansson described as a central command centre for the immune system. When the intestinal barrier is irritated by processed foods, additives or poor dietary quality, she argued, the result can be chronic low-grade inflammation that spills into the rest of the body.
That inflammation, she suggested, is not benign background noise. Left unresolved, it may play a role in autoimmune disorders, cancer risk and long-term degenerative disease. Gut health therefore became, in Johansson’s framework, not a niche wellness obsession but a foundational concern.
Her emphasis fell on food quality as much as food quantity: fibre, fats, the microbiome and the difference between nutrient-dense ancestral foods and modern products engineered for convenience and sweetness.
She also pointed to the transformation of fruit itself, arguing that cultivated modern varieties have been bred to contain more sugar and fewer protective nutrients than their wild ancestors. In evolutionary terms, she implied, many supermarket staples now send the body the wrong seasonal message all year round.
Beyond Diet Tribalism
If Johansson had a warning for the nutrition world, it was against simplistic dogma. Personal biology, she suggested, resists ideology. Activity levels differ. Gut flora differ. Tolerance for carbohydrates differs. Even a ketogenic framework, powerful as it might be, should be understood as part of a broader strategy rather than a universal identity.
Among the practical principles raised in the presentation were careful timing of carbohydrates for recovery, reducing exposure to harmful compounds produced during high-heat cooking, using testing tools to monitor how the body is processing fuel, and paying close attention to symptoms that might otherwise be dismissed or medicated away.
In that sense, her talk sat at the intersection of ancestral health and modern measurement: wild foods and blood markers, intuition and instrumentation, evolutionary logic and personal data.
A Biology That Could Still Be Changed
What Johansson offered at **Biohacker Summit 2017 Stockholm** was less a miracle cure than a reframing of responsibility and possibility. “**Chronic illness is not a part of normal aging,**” she said. “**You do not have to suffer through inflammation and protein damage because you can influence your biology and your genetic expression through nutrition.**”
It was an optimistic message, though not a naïve one. The body, as she described it, was continuously under pressure from industrial food, dysregulated blood sugar, immune disruption and damaged cellular signalling. But it was also adaptive, listening, modifiable.
In a conference culture often drawn toward sensors, implants and performance technologies, Johansson’s presentation stood out for insisting that the most profound interventions may still begin with metabolism. Before the singularity, before the machinery of enhancement, there was the older and more intimate challenge of learning how to feed a human body so that it could repair, regulate and express itself properly.
That, Johansson suggested, was not basic advice. It was biological engineering.
Part of Biohacker Summit 2017 Stockholm