The Information Obesity Crisis
In 1986, the average American consumed about 40 newspapers' worth of information per day. By 2011, researchers at UC San Diego calculated that number had grown to roughly 174 newspapers, or about 34 gigabytes of data. That's a 350% increase in just 25 years. And the pace hasn't slowed since.
Here's what makes this number especially striking: the human brain's processing capacity hasn't changed. We still have the same working memory limits, the same attention spans, the same need for sleep and recovery. We've simply demanded that our biology keep up with exponential data growth. It can't.
The parallels to the obesity crisis are hard to ignore. In the 1960s, food became cheap, processed, and hyperpalatable. Companies engineered products to override our satiety signals. The result, after a few decades, was a public health crisis. Obesity rates in the U.S. went from 13% in 1962 to over 42% today.
Information followed the same trajectory. Content became cheap to produce, algorithmically optimized for engagement, and available in unlimited quantities. Social media feeds are engineered to override our boredom signals, to keep us consuming past the point of usefulness. The average person now checks their phone 96 times per day, according to Asurion's 2024 data. That's once every 10 minutes during waking hours.
The cognitive consequences are measurable. A Microsoft study found that the average human attention span dropped from 12 seconds in 2000 to 8 seconds in 2015. (For reference, a goldfish clocks in at 9 seconds.) More recent research by Gloria Mark at UC Irvine found that the average time people spend on a single screen before switching dropped from 2.5 minutes in 2004 to 47 seconds in 2024.
We aren't getting dumber. We're getting overfed. And just like physical overeating, information overeating leads to sluggishness, poor decision-making, anxiety, and a vague sense that something is wrong without being able to pinpoint what.
Herbert Simon, the Nobel Prize-winning economist, saw this coming in 1971. "A wealth of information creates a poverty of attention," he wrote. That sentence is now 55 years old. It has only become more true.
What Is an Information Diet?
The term "information diet" was popularized by Clay Johnson in his 2012 book The Information Diet: A Case for Conscious Consumption. Johnson, a technologist who worked on Howard Dean's 2004 presidential campaign and later co-founded Blue State Digital, noticed something troubling in his own habits. He was consuming massive amounts of news and opinion, but his understanding of the world wasn't improving. It was getting worse.
His diagnosis: information consumption, like food consumption, works best when it's deliberate. An information diet is the conscious management of what information you consume, when you consume it, how much of it you take in, and from which sources.
Johnson drew three core principles from nutritional science.
First, quantity matters. Just as eating too much food (even healthy food) leads to weight gain, consuming too much information leads to cognitive overload. Your brain needs downtime to consolidate and process what it's taken in. Without that downtime, new inputs simply push older ones out of working memory before they've been properly stored.
Second, quality matters more. A thousand calories of vegetables and a thousand calories of candy are not equivalent, even though the calorie count matches. Similarly, an hour spent reading a peer-reviewed study and an hour spent scrolling Twitter replies are not equivalent, even though both count as "reading." The nutritional value of the input determines its effect on your cognition.
Third, habits beat intentions. Nobody maintains a healthy body by thinking about eating well. You maintain it by building systems: meal planning, grocery lists, cooking routines. The same applies to information. You don't build a healthy information diet through willpower alone. You build it through structure, curation, and scheduling.
The food metaphor isn't perfect. Information doesn't make you physically heavier. But the analogy holds remarkably well when it comes to cognitive and emotional effects. Bad information consumption produces anxiety, fragmented thinking, decision paralysis, and a shallow understanding of everything paired with a deep understanding of nothing.
The Nutrition Analogy: Mapping Food Groups to Information Types
If information is food, then different types of content serve different cognitive functions. Here's how the analogy maps out:
| Food Group | Information Type | Examples | Cognitive Function | Recommended Intake |
|---|---|---|---|---|
| Proteins (building blocks) | Deep, structured knowledge | Books, research papers, long-form essays, online courses | Builds mental models, develops expertise, creates lasting understanding | 40-50% of total intake |
| Carbohydrates (quick energy) | Timely, useful updates | News, newsletters, podcasts, industry reports | Provides context, keeps you current, fuels daily decisions | 25-30% of total intake |
| Fats (essential in moderation) | Social and entertainment content | Social media, YouTube, Reddit, casual browsing | Maintains social connections, provides creative inspiration, offers mental rest | 15-20% of total intake |
| Junk food (empty calories) | Outrage and clickbait | Doomscrolling, rage-bait, conspiracy theories, engagement-optimized content | None. Triggers dopamine but degrades thinking, increases anxiety, wastes time | As close to 0% as possible |
The protein category is where real learning happens. When you read a well-argued book cover to cover, you're doing the cognitive equivalent of a full workout. Your brain has to hold complex ideas in working memory, relate them to what you already know, evaluate the logic, and integrate the conclusions into your existing mental models. This is hard work. It's also the only kind of information consumption that reliably produces deep reading comprehension and lasting knowledge.
Carbohydrates aren't bad. You need them. A morning newsletter that summarizes the five most important developments in your field is genuinely useful. A podcast episode where an expert explains a new concept gives you quick energy for conversation and decision-making. The problem arises when carbs become your entire diet. If all you ever consume is news and newsletters, you'll feel informed but you won't actually understand much. You'll have facts without frameworks.
Fats are trickier. Social media gets a terrible reputation, and much of it is deserved. But humans are social creatures. We need connection, entertainment, and the creative cross-pollination that comes from encountering unexpected ideas. The key is portion control. Thirty minutes of curated social media can be restorative. Three hours of algorithm-driven scrolling is a binge.
Junk food is the category most people underestimate. Outrage content, clickbait headlines, doomscrolling through disaster threads: these aren't just time-wasters. They're actively harmful. Research by Brady et al. (2017), published in Proceedings of the National Academy of Sciences, found that moral-emotional language in social media posts increased sharing by 20% per emotional word. Platforms optimize for this. The content that makes you angriest is the content that spreads fastest. And consuming it chronically produces measurable increases in anxiety, political polarization, and a distorted perception of reality.
You wouldn't eat at a restaurant that made you feel sick every time. Why keep consuming content that makes you feel worse?
The Science of Information Overload
The feeling of being overwhelmed by information isn't just subjective. It has a well-studied neurological basis.
Cognitive Load Theory, developed by educational psychologist John Sweller in the late 1980s, describes the limits of working memory. Sweller's research showed that working memory can actively process only about 4 to 7 chunks of information at a time. When incoming information exceeds this capacity, learning doesn't just slow down. It stops entirely. Excess input gets dropped before it can be encoded into long-term memory.
This has direct implications for how we consume content. If you're reading an article while checking Slack notifications, half-listening to a podcast, and glancing at email, you're forcing your working memory to juggle multiple streams. None of them gets processed properly. You end up with a vague impression of having been "busy" and no actual learning to show for it.
Decision fatigue compounds the problem. Psychologist Roy Baumeister's research demonstrated that making decisions depletes a finite cognitive resource. Every choice you make throughout the day, from what to eat for breakfast to which email to respond to first, draws from the same pool. When you spend your morning deciding which of 47 unread newsletters to open, you've burned decision-making capacity before you've done any real work.
Barry Schwartz's The Paradox of Choice (2004) extends this to content selection. When faced with unlimited options, people don't choose better. They choose worse, or they don't choose at all. The anxiety of potentially missing something important leads to a pattern Schwartz calls "maximizing": endlessly sampling options without committing to any of them. Sound familiar? That's what opening 30 browser tabs and reading none of them looks like.
The physiological effects are also documented. A 2015 study by Misra and Stokols at UC Irvine found that information overload correlates with increased cortisol levels (the stress hormone), reduced sleep quality, and lower self-reported life satisfaction. Participants who reported high levels of information overload also showed worse performance on tasks requiring sustained attention and creative problem-solving.
The irony is brutal. We consume more information because we want to be smarter and more productive. But overconsumption makes us dumber and less productive. It's the cognitive equivalent of eating until you're too full to move.
Building Your Information Diet Plan
A healthy information diet doesn't require monastic withdrawal from the internet. It requires structure. Here's a five-step framework.
Step 1: Audit Your Current Consumption
Before you can improve your diet, you need to know what you're actually eating. For one week, track every significant information source you engage with. Use your phone's screen time report as a starting point, but go beyond it. Note the articles you read, the podcasts you listen to, the newsletters you open, the social media platforms you scroll, and the videos you watch.
Be honest. This isn't about guilt. It's about data. Most people are genuinely surprised when they see their consumption patterns laid out. You might discover that you spend 3 hours a day on content you can't even remember the next morning. That's your junk food.
Step 2: Categorize by Information Type
Take your audit log and sort each source into one of the four categories: protein, carbs, fats, or junk food. Some sources will be mixed. A Twitter feed might deliver genuine expert insights (protein) mixed with political outrage (junk food). In those cases, categorize based on what you actually consume from that source, not what it theoretically offers.
This step often produces uncomfortable clarity. Many people discover that their diet is 60% carbs (news, newsletters, shallow updates), 25% junk food (doomscrolling, outrage), 10% fats (social media, entertainment), and maybe 5% protein (actual deep reading). That's the informational equivalent of living on white bread and candy bars.
Step 3: Set Target Ratios
Based on the table above, aim for approximately:
- 40-50% proteins: Books, research papers, long-form articles, deep courses. This is where slow reading and focused study live.
- 25-30% carbs: Curated news, targeted newsletters, relevant podcasts.
- 15-20% fats: Social media, entertainment, casual browsing.
- Under 5% junk: Ideally zero, but being realistic, keep it minimal.
You don't need to be precise. The point is directional. If you're currently at 5% protein, getting to 20% is a massive improvement. Progress matters more than perfection.
Step 4: Schedule Consumption Windows
Constant grazing is the enemy of a healthy information diet. When you check news and social media throughout the day, you never give your brain the uninterrupted time it needs for deep processing.
Instead, batch your consumption into scheduled windows:
- Morning (15-20 min): Carbs. Scan your curated news sources and key newsletters. Get a quick picture of what happened overnight. Then close them.
- Deep work blocks (60-90 min): Proteins. Read a book chapter, work through a research paper, or engage with a long-form article. No notifications. No multitasking.
- Afternoon (15-20 min): Carbs/fats. Check social media, respond to non-urgent messages, browse interesting links you've saved.
- Evening (30-60 min): Mix of proteins and fats. Read for pleasure, watch an educational video, enjoy entertainment content. Wind down.
The specific times don't matter as much as the structure. The point is to separate consumption from creation. When you're working, you're working. When you're consuming, you're consuming. The two shouldn't overlap.
Step 5: Curate Your Sources Ruthlessly
Quality over quantity. You don't need 47 newsletters. You need 5 great ones. You don't need to follow 2,000 people on Twitter. You need to follow 50 who consistently share protein-grade content.
Apply the "restaurant test": if a source served you bad content three times in a row, would you go back? Unsubscribe from newsletters you don't read. Unfollow accounts that produce more heat than light. Delete apps that you use only for junk food consumption.
This curation is ongoing work. Your information needs change as your interests and projects evolve. Review your sources quarterly and cut anything that no longer serves you.
Tools for a Healthy Information Diet
Structure and intention matter most, but the right tools make healthy habits easier to maintain. Think of them as your kitchen equipment: they don't cook the meal for you, but they make cooking faster and more enjoyable.
Meal Prep: Highlight and Save the Good Stuff
The biggest challenge with a high-protein information diet is retention. You can spend an hour reading a brilliant article, but if you don't capture the key ideas, they'll fade within days. Glasp's web highlighter works like meal prep for your brain. As you read, you highlight the passages that matter. Those highlights get saved, organized, and made searchable. When you need to revisit an idea weeks later, it's there.
This active highlighting also forces you to engage with the material rather than passively scanning it. The act of deciding "this passage is important enough to save" is itself a form of processing that improves comprehension and retention. Research on the science of highlighting backs this up: strategic annotation significantly outperforms passive reading for long-term recall.
Protein Shakes: Get the Nutrients Without the Full Meal
Not every piece of content deserves a full deep read. Sometimes you need to quickly assess whether a 45-minute video or a 5,000-word article is worth your time. YouTube Summary functions like a protein shake: it extracts the key nutrients from video content so you can make an informed decision about whether to consume the full meal.
This is triage, not a replacement for deep engagement. Use summaries to decide what earns your protein time. Then, when something makes the cut, give it your full attention.
Curated Restaurant Recommendations: Learn from What Others Are Reading
One of the hardest parts of a healthy diet is finding good sources consistently. Glasp's community feed solves this by showing you what thoughtful readers in your areas of interest are highlighting and saving. It's like getting restaurant recommendations from friends who share your taste. Instead of algorithmically optimized content designed to maximize engagement, you get human-curated content selected for genuine value.
Follow readers whose highlights consistently teach you something. Their curation becomes part of your curation.
Your Personal Recipe Book: Build a Knowledge Archive
Healthy eating isn't just about individual meals. It's about building a pantry of good ingredients you can return to over time. The same applies to information. When you export your highlights into a personal knowledge management system, you're building a searchable archive of everything that's mattered to you intellectually.
This archive becomes increasingly valuable over time. Connections between ideas from different books, articles, and videos emerge that you'd never notice if each piece of content existed only in your memory. It's how you turn isolated meals into a sustained nutritional plan.
If you read on Kindle, Kindle highlights can sync your annotations into the same system, so your book reading and web reading live in one place.
AI as Your Nutritionist
Glasp's AI chat can help you process what you've consumed. Ask it questions about your highlights. Have it identify contradictions between sources you've read. Use it to generate active recall questions that test your understanding. This is the informational equivalent of talking to a nutritionist who knows everything you've eaten and can tell you what you're missing.
The danger with AI, as we've discussed, is using it as a replacement for deep reading. Used correctly, as a processing and review tool, it amplifies the value of what you've already consumed deeply. This is the difference between using AI to think for you and using AI to think alongside you.
The Business Case for Information Hygiene
This isn't just a personal wellness issue. It's an economic one.
The World Economic Forum's 2024 report on information consumption in the workplace estimated that healthier information habits across the global workforce could boost GDP by 0.5%, roughly $435 billion. The report cited three primary mechanisms: reduced time wasted on low-value content, improved decision quality from better-informed workers, and lower healthcare costs from reduced stress-related illness.
Deloitte's 2024 Global Human Capital Trends survey found that 68% of companies now provide some form of training on information management, up from just 23% in 2019. The fastest-growing category of corporate wellness programs isn't meditation or exercise. It's digital hygiene.
The numbers at the individual level are equally compelling. A study by Basex (now part of ScreenBeam) estimated that information overload costs the U.S. economy $997 billion per year in lost productivity. The average knowledge worker loses 25% of their day to unnecessary information processing: reading emails that don't require action, attending meetings that could have been documents, consuming content that doesn't relate to their work.
If you're a manager, think about what your team's information diet looks like. Are they spending their cognitive protein budget on deep, focused work? Or are they burning it on Slack notifications, unnecessary newsletters, and meetings that interrupt their best thinking hours?
If you're an individual contributor, your information diet is one of the few variables you can actually control. You can't change your company's meeting culture overnight. But you can unsubscribe from 40 newsletters, batch your email checking to three times a day, and dedicate your morning hours to deep work instead of news consumption.
Frequently Asked Questions
How do I know if I'm "information obese"?
There are a few reliable symptoms. You feel busy but can't point to what you've learned recently. You start articles without finishing them. You have dozens of browser tabs open that you'll "get to later" (you won't). You feel anxious when you're not consuming something. You can recall headlines but not arguments. If three or more of these apply, your information diet probably needs restructuring.
Won't I miss important news if I limit my consumption?
Probably not. Most "breaking news" repeats itself across every source you follow. If something is truly important, it will reach you. The fear of missing out is itself a symptom of information overconsumption. Try a one-week experiment: cut your news intake by 50% and see if you actually miss anything that matters. Most people find they don't.
Is all social media "junk food"?
No. Social media is a platform, not a content type. A curated Twitter list of experts in your field can deliver protein-grade insights. A Reddit community dedicated to your professional niche can surface papers and discussions you'd never find otherwise. The problem isn't social media itself. It's the algorithmic default feed, which optimizes for engagement (outrage, novelty, tribalism) rather than learning. Use social media actively and intentionally, not passively and algorithmically.
How long does it take to see results from changing your information diet?
Most people notice a difference within two weeks. The first thing you'll feel is boredom, which is actually a good sign. It means your brain is recalibrating its dopamine baseline away from constant stimulation. After the initial adjustment, people typically report improved focus, better sleep, lower anxiety, and (somewhat paradoxically) feeling better informed despite consuming less. The cognitive improvements from sustained deep reading take longer, maybe a month or two, to become noticeable.
Conclusion: You Are What You Read
The food metaphor for information consumption isn't just clever. It's structurally accurate. What you feed your mind shapes how it functions, just as what you feed your body shapes how it performs. Junk in, junk out. Protein in, strength out.
The good news is that, unlike genetic predispositions to certain health conditions, your information diet is entirely within your control. You choose what to read, when to read it, and how deeply to engage. You choose whether to spend your morning on Twitter or on a book. You choose whether to save and process what you've read or let it evaporate by dinnertime.
Clay Johnson closed The Information Diet with a line that still resonates: "Just as food companies learned that if they added enough fat, sugar, and salt, they could get people to eat more, media companies have learned that if they add enough conflict, scandal, and sensationalism, they can get people to consume more. The only defense is consciousness."
Consciousness is the starting point. Structure is what makes it sustainable. Audit your consumption. Categorize it honestly. Set targets that prioritize depth over volume. Schedule windows that separate grazing from focused intake. Curate your sources so that what reaches you is worth your attention.
Your brain is the most sophisticated learning machine on the planet. Stop feeding it junk. Give it the diet it deserves, and watch what it can do.
Ready to build a healthier information diet? Start by highlighting what matters. Glasp helps you capture, organize, and share the most nutritious parts of everything you read online. Your meal-prepped knowledge library is one click away.