Steve Jobs, Vegetarianism and Fasting: The Unusual Diet of the Apple Founder
Steve Jobs is remembered as one of the most influential technology entrepreneurs of the modern era. As co-founder of Apple, he helped transform personal computing, music, mobile phones and digital media.
Less well known, but equally fascinating, was his unusual relationship with food.
Jobs was a committed vegetarian for much of his life and, at different times, followed vegan and fruitarian diets. He also experimented with prolonged fasting and periods of eating extremely limited amounts or types of food.
His approach to nutrition was not conventional. It was part of a broader personal philosophy that included simplicity, spirituality, experimentation and the belief that the body and mind could be influenced by what—and how much—we consume.
For those interested in fasting, Steve Jobs provides a particularly interesting case study.
Steve Jobs became a vegetarian
Jobs' interest in vegetarianism developed when he was young.
While attending Reed College, he was influenced by books including Diet for a Small Planet, which promoted vegetarianism and discussed its environmental and ethical implications. Jobs subsequently stopped eating meat and became increasingly interested in unconventional approaches to food.
In a 1985 interview, Jobs was asked directly about his interest in Buddhism and vegetarianism.
His response was simple:
"I don't eat meat."
The Steve Jobs Archive preserves this exchange, providing unusually direct evidence of his dietary philosophy at the time.
Vegetarianism, however, was only the beginning.
From vegetarianism to fruitarianism
Jobs repeatedly experimented with increasingly restrictive diets.
At various points he ate primarily fruits and vegetables. He also went through periods of eating very limited selections of food, including apples, carrots, dates and almonds.
His interest in fruitarianism became particularly notable.
Fruitarianism generally refers to a diet consisting predominantly or exclusively of fruit, although definitions vary. It is considerably more restrictive than a conventional vegetarian or vegan diet.
Jobs was not simply following a dietary trend. He believed that restricting food could produce physical and psychological effects.
According to accounts of his early life, he experimented with fasting for several days and believed that prolonged periods without food could produce feelings of heightened vitality and clarity.
These experiences were important to Jobs personally, although they should not be interpreted as scientific evidence that prolonged fasting produces the same effects in everyone.
Steve Jobs and prolonged fasting
Fasting was a recurring part of Jobs' experimentation with food.
His interest was partly influenced by Arnold Ehret's Mucusless Diet Healing System, which promoted an extremely restrictive approach to eating and advocated fasting as a way of cleansing the body.
Jobs experimented with periods of fasting that reportedly extended from several days to a week or more.
He described experiencing what he regarded as increased energy and vitality during some of these periods.
This is particularly interesting because Jobs was not approaching fasting primarily as a modern weight-loss strategy.
For him, fasting was connected to a much broader idea of purification, simplicity and consciousness.
That distinction is important.
Modern discussions of fasting often focus on insulin, ketones, weight loss, autophagy, metabolic health and longevity. Jobs' interest was considerably broader and included psychological and spiritual dimensions.
The connection between fasting and spirituality
Jobs' interest in fasting cannot easily be separated from his interest in spirituality.
He travelled to India in the 1970s, explored Buddhism and became interested in Eastern philosophy and meditation.
His approach to food reflected some of the same themes.
- Eat less.
- Simplify.
- Question conventional assumptions.
- Pay attention to the body.
- Explore consciousness.
These ideas appeared repeatedly throughout his life.
Jobs' dietary experimentation therefore appears to have been part of a larger search for understanding rather than simply an attempt to improve his nutritional profile.
The Apple connection
There is also an extraordinary connection between Jobs' dietary experimentation and the name of the company he co-founded.
In 1976, while Jobs was following one of his fruitarian diets, he had recently returned from an apple farm in Oregon.
During the drive back with Steve Wozniak, Jobs proposed the name Apple Computer.
Jobs later explained that he had been on one of his fruitarian diets, had just returned from the apple farm, and thought "Apple" sounded fun, spirited and approachable. He also liked the fact that it would place the company ahead of Atari in a telephone directory.
So there really is a connection between Jobs' fruitarian period and the name Apple.
It wasn't simply that he was vegetarian and therefore named his company after a fruit.
The story was more specific: he was on a fruitarian diet, had just returned from an apple farm, and liked the simplicity of the word "Apple."
Vegetarianism was not the same as fasting
Jobs' eating habits also illustrate an important distinction for anyone studying fasting.
A vegetarian diet eliminates meat.
A vegan diet eliminates animal-derived foods.
A fruitarian diet restricts food choices even further.
Fasting is different.
Fasting involves voluntarily abstaining from food for a defined period.
Someone eating only apples is following an extremely restrictive diet, but they are still eating. Someone consuming no food for a period is fasting.
The metabolic consequences can therefore be very different.
This distinction becomes particularly important when discussing Jobs because the words "vegetarian," "vegan," "fruitarian" and "fasting" are sometimes used interchangeably when describing his dietary history.
They shouldn't be.
Did Steve Jobs believe fasting was beneficial?
Jobs certainly appears to have believed that fasting and extreme dietary restriction could produce benefits.
He described periods of fasting positively and continued to experiment with restrictive diets throughout his life.
But Jobs' personal experience should not be confused with clinical evidence.
A person feeling energetic or mentally clear during a fast does not establish that fasting is universally beneficial. Likewise, an individual's negative experience does not prove that fasting is universally harmful.
This is one reason documentation and measurement are important when examining fasting.
Steve Jobs and cancer
The later part of Jobs' dietary history is considerably more controversial.
In 2003, Jobs was diagnosed with a pancreatic neuroendocrine tumor. Rather than immediately undergoing conventional surgery, he initially pursued alternative approaches, including dietary changes and periods of extreme restriction. He eventually underwent surgery in 2004.
His decisions have been extensively discussed because his approach to food and alternative treatment was so unconventional.
It is important, however, not to oversimplify the story.
Jobs' cancer was a rare form of pancreatic cancer, and there is no reliable basis for claiming that fasting caused his cancer, caused its recurrence, or determined the eventual outcome.
Nor should his experience be used as evidence that fasting can treat cancer.
His story demonstrates something different: how strongly personal beliefs about food can influence decisions about health.
The danger of turning an individual experience into a dietary prescription
Steve Jobs was an unusually intense individual.
He questioned established assumptions throughout his life and was willing to pursue ideas long after other people had abandoned them.
That characteristic contributed enormously to his creative achievements.
But the same willingness to pursue unconventional ideas could also lead him toward dietary extremes.
This is an important lesson.
The fact that an extraordinary person followed an unusual diet does not make that diet appropriate for everyone.
Jobs' success as an entrepreneur does not validate fruitarianism.
His experience of fasting does not establish that prolonged fasting is safe for everyone.
And his longevity of productivity cannot be attributed to his diet.
The evidence simply does not support those conclusions.
What can we learn from Steve Jobs?
Perhaps the most interesting lesson from Jobs is not what he ate.
It is why he experimented with food in the first place.
- Jobs was interested in simplicity.
- He questioned assumptions.
- He experimented.
- He observed how changes affected him.
- And he developed strong personal convictions from those experiences.
Those characteristics make his story relevant to the One-Year Fast.
The purpose of the One-Year Fast is not to prove that fasting is good or bad.
It is to explore what happens when fasting becomes a sustained, structured practice and to document the physical, emotional, psychological and spiritual experience.
That requires separating personal experience from scientific conclusion.
- A subjective observation can be valuable.
- A measurable change can be valuable.
- A blood test can provide information.
- A body-composition measurement can provide information.
- Sleep, heart rate, HRV, metabolic measurements and other biomarkers can provide additional information.
None of these alone tells the entire story.
Together, however, they can create a much richer picture.
Steve Jobs and the philosophy of simplicity
There is perhaps an appropriate irony in the story.
Jobs became famous for simplifying technology.
His products were designed to remove unnecessary complexity and make sophisticated technology accessible.
His approach to food often followed a similar philosophy.
- Fewer foods.
- Less consumption.
- More simplicity.
At its most extreme, fasting takes this idea even further.
Instead of asking:
"What should I eat?"
the question becomes:
"Do I need to eat right now?"
That doesn't mean that eating is unnecessary. Food is fundamental to human survival.
But temporarily stepping away from food can provide an unusual opportunity to examine our relationship with eating itself.
A fascinating case study—not a blueprint
Steve Jobs' dietary history is fascinating precisely because it was so unusual.
- He was vegetarian.
- At times he was vegan.
- He experimented with fruitarianism.
- He practiced periods of fasting.
- He connected food with spirituality and personal discipline.
- And, remarkably, the period in which he was following a fruitarian diet coincided with the creation of the name Apple Computer.
But his story should be viewed as a historical case study rather than a blueprint for how to eat.
Some of his dietary beliefs were unsupported by modern nutritional science, and some of his practices were extremely restrictive.
The lesson is not that we should eat like Steve Jobs.
The lesson is that our relationship with food is far more complicated than simply eating to satisfy hunger.
Food can represent culture, pleasure, identity, spirituality, discipline and even personal philosophy.
Fasting adds another dimension: the deliberate decision to temporarily remove food from the equation.
Steve Jobs spent much of his life experimenting with that boundary.
The One-Year Fast explores it too—but with a different objective:
Observe. Measure. Document. Learn.
Not every experiment produces the result we expect.
That may be the most valuable result of all.
Key Facts
Era: 1955–2011
Known For: Co-founding Apple and his philosophy of simplicity, design and experimentation.
Diet: Predominantly vegetarian, with periods of vegan and highly restrictive fruitarian eating.
Connection to Fasting: Experimented with prolonged fasting influenced by Arnold Ehret's Mucusless Diet Healing System.
Legacy: A fascinating case study of how food, fasting and personal philosophy can intertwine — not a dietary blueprint.
Frequently Asked Questions
Was Steve Jobs a vegetarian?
Yes. Jobs stopped eating meat after being influenced by books such as Diet for a Small Planet while at Reed College, and stated directly in a 1985 interview, "I don't eat meat." He remained a committed vegetarian for much of his life, though his diet later became far more restrictive.
Was Steve Jobs vegan?
He went through periods when his diet was entirely or almost entirely plant-based, so the label is sometimes applied. However, his practices changed over time and at times became far more restrictive than conventional veganism, including extended fruitarian periods.
Did Steve Jobs fast?
Yes. Jobs experimented with periods of fasting that reportedly extended from several days to a week or more, partly influenced by Arnold Ehret's Mucusless Diet Healing System. He described experiencing increased energy and vitality during some of these periods, though his personal experience should not be confused with clinical evidence.
Why is the company called Apple?
In 1976, while following a fruitarian diet, Jobs had just returned from an apple farm in Oregon. During a drive with Steve Wozniak he proposed the name Apple Computer, liking that it sounded fun, spirited and approachable, and that it would place the company ahead of Atari in a telephone directory.
Should I copy Steve Jobs' diet?
No. His story is best read as a historical case study, not a blueprint. Some of his dietary beliefs were unsupported by modern nutritional science, and progressively eliminating entire categories of food can create nutritional deficiencies. Always consult a qualified clinician before undertaking restrictive eating or fasting protocols.
Written by Alfie Hammersham — founder of One Year Fast, who is fasting three full days a week for 52 consecutive weeks and publishing every biomarker openly. Not a doctor; every physiological claim on this site is referenced to published research, and lived experience is labelled as such.
Physiological claims on this page are cited to peer-reviewed studies; first-hand readings come from one subject and are labelled as personal experience. See the editorial & sourcing policy for how this is written, reviewed and corrected.
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Disclaimer: The content on this website, including all articles, text, graphics, and other material, is for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or before embarking on a prolonged fasting protocol or new exercise regimen. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.
