Why We Get Sick

In one sentence

The root cause of most modern chronic diseases (obesity, diabetes, PCOS, hypertension) is not a lack of willpower or "bad luck," but rather chronic hyperinsulinemia: a state where your body is constantly flooded with insulin because of the way we eat, preventing your body from ever entering its natural fat-burning and repair states.

Why read this (and who it's for)

This book is for anyone who feels "stuck." If you are trying to lose weight but find yourself plateauing; if you suffer from brain fog, fatigue, or hormonal imbalances like PCOS; or if you simply want to understand the mechanics of why your body isn't performing the way it should.

Bikman moves the conversation away from "counting calories" (which is a surface-level metric) and toward metabolic management. After reading this, you will be able to identify which specific dietary habits are keeping your insulin levels spiked, how to systematically lower those levels to unlock fat loss, and how to choose foods that support metabolic repair rather than systemic inflammation.

The big idea

The central thesis of Why We Get Sick is that the human body is biologically designed for a world of scarcity, but we currently live in a world of infinite caloric abundance. Because our bodies cannot "turn off" the ability to store energy, they respond to constant food intake by producing insulin—the primary storage hormone.

When you eat frequently (grazing), consume high-glycemic carbohydrates, or ingest certain inflammatory oils, your insulin levels stay elevated. Insulin is a storage hormone. When it is high, your body is biochemically forbidden from burning stored fat, repairing damaged tissues efficiently, or regulating blood sugar properly.

Bikman argues that we have created a "metabolic mismatch." We are eating foods that our ancestors never saw (ultra-processed carbohydrates and industrial seed oils) in frequencies they never experienced (snacking all day). This creates a state of chronic hyperinsulinemia. To get healthy, you must move your body from a perpetual state of storage into a periodic state of burning.

Key ideas

Insulin: The Master Storage Hormone

• What it is — Insulin is the hormone responsible for moving glucose (sugar) out of the bloodstream and into cells for storage or immediate use. It is the "master" because its levels dictate whether your body is in a state of building/storing or breaking down/burning.
• Why it matters — If insulin is constantly high, your body cannot access stored body fat (lipolysis). You can be in a calorie deficit but still unable to lose weight because the "storage" signal is never turned off.
• In the book — Bikman explains that many people think they are "overeating," but they are actually "over-insulining." They eat enough calories, but the frequency and type of those calories keep insulin high 24/7.

The Fructose Problem

• What it is — Unlike glucose, which can be used by almost every cell in the body, fructose is processed almost exclusively by the liver.
• Why it matters — When the liver is overwhelmed by fructose (from high-fructose corn syrup or excessive fruit sugar), it converts that sugar into triglycerides (fat) and uric acid. This leads directly to Non-Alcoholic Fatty Liver Disease (NAFLD) and systemic inflammation.
• In the book — He highlights how modern food processing has concentrated fructose into "hidden" sources like salad dressings, breads, and sodas, making it nearly impossible to avoid without conscious effort.

Seed Oils and Oxidation

• What it is — These are industrial oils (soybean, canola, corn, cottonseed) that are high in Omega-6 fatty acids and processed via high-heat extraction.
• Why it matters — These oils are highly unstable and prone to oxidation. When they oxidize in your body, they create systemic inflammation, which interferes with insulin sensitivity and damages cellular integrity.
• In the book — Bikman argues that "low fat" diets often replaced healthy fats with these inflammatory seed oils, leading to a spike in chronic inflammatory markers across the population.

The Danger of Grazing

• What it is — Grazing is the habit of eating small amounts of food throughout the day (snacking, "little bites," constant grazing).
• Why it matters — Every time you eat, even a small amount, your body releases insulin. If you never allow your insulin levels to drop, your body stays in "storage mode." You need periods of time where you are not eating to allow insulin to bottom out so the body can switch to burning fat.
• In the book — He contrasts the modern habit of "snacking" with the ancestral reality of meals separated by hours of fasting, which allowed for metabolic repair.

Protein as a Satiety Tool

• What is it — Protein is not just a macronutrient; it is a signaling tool that triggers satiety hormones (like PYY and GLP-1) and increases thermogenesis.
• Why it matters — Many people fail at dieting because they don't feel full. Prioritizing protein ensures you stay satisfied while keeping the insulin response lower than high-carb snacks would.
• In the book — He emphasizes that "protein is the most underrated tool in weight loss." It provides the building blocks for muscle (which is metabolically active) and keeps hunger signals suppressed.

Ultra-Processed Food (UPF) Palatability

• What it is — These are foods engineered to be hyper-palatable, often combining high sugar, high fat, and low fiber/protein.
• Why it matters — They bypass our natural satiety cues, leading to "overconsumption" not because of a lack of willpower, but because the food was designed to override the brain's "full" signal.
• In the book — He discusses how these foods keep us in a cycle of seeking more, which keeps insulin high and metabolic health low.

Frameworks & tools

The Metabolic Health Audit

Use this checklist to identify where your current habits are keeping you in "storage mode."

1. The Grazing Check: Do I eat anything between meals? (If yes, your insulin is likely staying elevated).
2. The Seed Oil Scan: Look at labels on salad dressings, mayonnaise, and breads. Are there industrial oils listed first?
3. The Fructose Source: Am I consuming high-fructose corn syrup or excessive fruit sugars regularly?
4. The Protein Baseline: Is my breakfast primarily protein-based (eggs, meat) or carbohydrate-based (toast, cereal)?

The "Insulin Management" Plate Construction

To lower insulin and unlock fat burning, construct your meals using this hierarchy:

1. Protein First: Choose a high-quality protein source (steak, chicken, fish, eggs).
2. Fiber/Vegetables Second: Fill half the plate with non-starchy vegetables to slow gastric emptying and provide micronutrients.
3. Healthy Fats Third: Use avocado, olive oil, or butter for satiety and hormonal health.
4. Carbohydrates Last (and Sparingly): Only include starches if they are whole foods (sweet potato, berries) and keep portions small.

Memorable examples & stories

The "Engine" Analogy

Bikman often uses the analogy of a car engine to explain metabolism. If you keep your foot on the gas pedal (constant eating/insulin), the engine never gets a chance to idle or cool down. To burn fuel efficiently, the engine needs periods where the gas is off. Lesson: Your body needs "off" periods for insulin to drop.

The Evolution of Food Processing

He describes how we went from grinding grain by hand (slow) to industrial milling (fast), and then to chemical extraction of oils. This accelerated the pace of caloric intake beyond what our biology can handle. Lesson: Our bodies are running "old software" on a "high-speed hardware" world.

The PCOS Patient Case Study

He discusses patients with Polycystic Ovary Syndrome (PCOS) who were told to eat "healthy" but weren't losing weight or clearing acne. By identifying their constant grazing and high fructose intake, they were able to lower insulin and see dramatic improvements in symptoms. Lesson: Hormonal issues are often metabolic issues in disguise.

Key quotes

• "Insulin is the master hormone of storage." (Paraphrased) Why it matters: It shifts the focus from calories to hormonal signaling.
• "If you never let your insulin levels drop, your body will never have the opportunity to burn stored fat." (Paraphrased) Why it matters: Explains why "eating less" doesn't work if you still eat constantly.
• "We are living in a world of infinite abundance, but our bodies are still wired for scarcity." (Paraphrased) Why it matters: Provides the evolutionary context for why we struggle with modern food.

How to apply it

This week:

1. Identify your Seed Oils: Go through your pantry and identify any oils containing "soybean," "canola," or "cottonseed." Replace them with butter, tallow, or avocado oil.
2. The Grazing Audit: Try to go just 4 hours between meals without snacking on anything (even a small piece of fruit or a handful of nuts). Notice how your hunger levels fluctuate.
3. Protein Breakfast: Switch your breakfast to be purely protein and fat-based (e.g., eggs and avocado) for three days straight.

Ongoing:

1. Prioritize Protein: Ensure every meal has at least 30g of protein.
2. Minimize Fructose: Avoid high-fructose corn syrup and limit fruit to berries where possible.
3. Periodic Fasting: Allow your body to reach a "low insulin" state by ensuring you are not eating for at least 4–6 hours between meals, and ideally a longer window overnight.

Common pitfalls

• The Low-Fat Trap: Many people think "healthy" means low fat. However, removing fat often leads to higher sugar intake, which spikes insulin even more.
• Ignoring Sleep/Stress: While Bikman focuses heavily on diet, it's important to remember that sleep deprivation and high cortisol can also spike blood glucose and interfere with insulin sensitivity.
• The "Health Food" Fallacy: Just because a food is "natural" (like agave nectar or certain fruit juices) doesn't mean it isn't spiking your insulin. Focus on the metabolic impact, not the marketing label.

Connects to

• Glucose Goddess (Jessamine Stanley): Extends the idea of glucose spikes by focusing on how we can blunt those spikes using vinegar and fiber.
• The Obesity Code (Gary Taubes): Provides a deeper dive into the specific biochemistry of insulin resistance and why "eating less" is insufficient without managing insulin.

If you remember only three things

• Chronic illness is often a result of chronic hyperinsulinemia (constant storage mode).
• To burn fat, you must create windows of time where insulin levels drop.
• Prioritize protein and healthy fats while minimizing industrial seed oils and frequent snacking.

Internalize it

• Reflection questions —

  1. When was the last time I went more than 4 hours without eating? How did my energy feel during that window?
  2. Which of my "healthy" habits (like fruit juice or constant snacking) might actually be keeping my insulin levels high?
  3. Am I prioritizing protein at every meal, or am I relying on carbohydrates for satiety?

• Flashcards — Q: What is the primary role of insulin in the body? A: It is a storage hormone that moves glucose out of the blood and into cells/storage. Q: Why is chronic hyperinsulinemia a problem for weight loss? A: Because high insulin levels biochemically forbid the body from burning stored fat (lipolysis). Q: What makes fructose unique compared to other sugars? A: It is processed almost exclusively by the liver, leading to fatty liver and triglycerides. Q: Why is "grazing" detrimental to metabolic health? A: Every small snack triggers an insulin response, preventing insulin from dropping low enough for fat burning/repair. Q: What are the primary issues with industrial seed oils? A: They are high in Omega-6s and prone to oxidation, which creates systemic inflammation. Q: How does protein help with weight management? A: It triggers satiety hormones (PYY, GLP-1) and increases thermogenesis while having a lower insulin impact than carbs.

Fidelity note

I am highly confident in the core metabolic arguments presented by Benjamin Bikman (insulin as storage, fructose's role in the liver, and the dangers of grazing). These are the pillars of his teaching. I am less certain about specific anecdotes from his podcast vs. his book, so readers should verify specific case studies if they want a deep dive into individual patient histories.