Chapter 1 — Are You a Whole Foodie?
Outside of breathing and sleeping, you spend more time on food than on anything else that keeps you alive. It’s one of your greatest pleasures, and you share it with the people you love. Eating together even releases oxytocin, the “love hormone” that helps people feel close. Food is celebration. Food is connection.
But for millions of people, food also means stress, weight gain, confusion, and disease. Americans could be the healthiest people who ever lived, and they’re the opposite. Today 69 percent of US adults are overweight and 36 percent are obese. It isn’t for lack of trying. At any given time, more than half the country is on a diet.
John Mackey, the cofounder of Whole Foods Market, wrote this book with two physicians, Alona Pulde and Matthew Lederman. Their starting point is that eating is a skill. You wouldn’t expect to play an instrument well without study and practice, and eating works the same way. You may just eat the way your parents raised you, without asking whether it helps you reach your own goals. A skillful eater learns what nutrition science can teach and sees past the diet fads. Over time their tastes change too, until what they love to eat and what’s good for them are the same thing.
So what does a skillful eater eat? The authors’ answer is a whole foods, mostly plant-based diet. Fill up on whole plant foods, keep meat, fish, dairy, and eggs to a minimum, and cut out highly processed food. It isn’t necessarily vegetarian or vegan. The target is 90 percent or more plants, which leaves up to 10 percent of your calories for animal foods. And it’s flexible. Mediterranean, Paleo, gluten-free, and vegan eating can all be adapted to fit.
The experts agree more than the headlines suggest. Dr. David Katz of the Yale-Griffin Prevention Research Center compared the evidence behind every major diet, from Paleo to vegan. He concluded that “a diet of minimally processed foods close to nature, predominantly plants, is decisively associated with health promotion and disease prevention.” In 2015, he gathered twenty-one leading nutritionists, from plant-based champion Dr. Dean Ornish to S. Boyd Eaton, the father of the Paleo movement. Almost no one argued for processed food, and almost everyone agreed you should eat far more fruits and vegetables.
The writer Michael Pollan boiled it down to seven words: “Eat food. Mostly plants. Not too much.” If you really follow the first two, it’s hard to break the third. Real plant food fills you up before you overeat, so you can stop worrying about portions.
What counts as a whole food? As Pollan puts it, “If it came from a plant, eat it; if it was made in a plant, don’t.” Dr. Michael Greger, who runs the site NutritionFacts.org, gives the definition the book uses: “nothing bad added, nothing good taken away.” Steel-cut oats pass. Sugary oatmeal cookies don’t. Whole foods spoil faster, would look like food to your great-grandparents, and have short ingredient lists or none. Cooking is fine. This isn’t a raw-food diet, and cooking often makes food easier to digest. The goal is food that’s as close as possible to how it came off the tree, vine, or root.
Greger has a personal reason to care. After several heart surgeries, his grandmother was declared beyond medical help at sixty-five. She switched to a plant-based diet and lived another thirty-one years. His advice: “We should all be eating fruits and vegetables as if our lives depended on it—because they do.”
Whole food also can’t be rebuilt in a lab. You could pull every nutrient out of a blueberry and put it in a pill, and it still wouldn’t do what a bowl of blueberries does. The good news is that you don’t need to understand why. Eat real food, and your body breaks it down the way it evolved to. The authors call themselves Whole Foodies: people who love food that tastes great and makes life better.
Chapter 2 — Calorie Rich, Nutrient Poor
The Roman statesman Cato once said, “It is a hard matter, my fellow citizens, to argue with the belly, since it has no ears.” Your body is built to tell you when you’ve had enough. But processed food scrambles those signals. On refined food, you’ll still feel hungry after you’ve eaten more calories than you need.
Here’s why. Your stomach has receptors that measure stretch, meaning how much room your food takes up. Bulky, high-fiber food stretches your stomach and tells your brain you’re full. Other receptors check that you’re getting real calories. With whole plant foods, the two work together. Processing breaks this system. It takes out water and fiber and adds sugar and fat, so the calories take up far less room, and the “enough” signal never comes. Corn has 500 calories per pound. Corn oil has 4,000. A sweet potato has 389, and deep-fried sweet potato chips have 2,400.
It’s why one of the best pieces of weight-loss advice you’ll ever hear is: don’t drink your calories. Small extras add up. Eat just 100 calories more than you need at each meal, about two chicken nuggets, and you’ll gain more than 25 pounds in a year. Animal foods cause the same problem, since they’re high in calories and have no fiber. Fry meat in oil, add white bread and fries, and you have a recipe for obesity.
That’s also why diets built on portion control rarely work. You don’t lack willpower. Your food is tricking your body. Your brain reads the missing stretch as starvation and keeps sending hunger signals to keep you alive. Hunger is a powerful survival tool, and sooner or later it wins.
So here’s how to lose weight without giving anything up: eat more vegetables. Add an extra serving of vegetables or fruit to every meal, and eat it first. That’s the veggie paradox. The more vegetables you eat, the more weight you lose, as long as you don’t drown them in oil. Start each meal with a big salad or a bowl of vegetable soup, or a bowl of fruit at breakfast.
Dr. Joel Fuhrman scores foods by how many nutrients they pack per calorie. Kale got a perfect 1,000, and when Whole Foods Market put his scores in its stores, kale sales took off. His idea shifts your focus from what you shouldn’t eat to all the good food you should. As the book puts it, don’t call it a diet. Just change what you eat.
Movement matters too. The longest-lived people in the world don’t necessarily lift weights. They walk, garden, get up and down from the floor, and herd goats up hills. And if you worry that plants will cost you strength, look at the athletes who eat this way: Olympic track star Carl Lewis, tennis stars Venus Williams and Novak Djokovic, and ultra-athletes Rich Roll and Scott Jurek.
Chapter 3 — Connecting Diet and Disease
Picture a pill that could prevent and reverse heart disease and type 2 diabetes, lower your cholesterol and blood pressure, cut your cancer risk, extend your life span, and make you look and feel great. You’d take it right away. It doesn’t come in a bottle, but the authors argue that a whole foods, plant-based diet has been shown to do all of that.
The flip side is just as clear. Eating lots of red and processed meat is linked to a higher risk of death from all causes. More than a thousand studies agree that red meat raises the risk of bowel cancer and high-fiber plant foods lower it. The World Health Organization calls processed meat a carcinogen, something that causes cancer.
The biggest study behind the book is The China Study. A survey of 880 million Chinese citizens had shown that cancer rates depended on where people lived. Some rural areas had almost none. The researcher T. Colin Campbell and his colleague Chen Junshi set out to learn why. Their twenty-year project tracked the diets and diseases of 6,500 people across China. The New York Times called it “the most comprehensive large study ever undertaken of the relationship between diet and the risk of developing disease.”
Campbell was an unlikely convert. He grew up on a Virginia dairy farm, believing that “the more dairy, meat, and eggs we consumed, the better.” The data changed his mind. “People who ate the most animal-based foods got the most chronic disease,” he writes. “People who ate the most plant-based foods were the healthiest and tended to avoid chronic disease.”
Fiber was a big part of it. People in China ate about three times as much fiber as Americans, and high-fiber diets went with less colon cancer. You don’t digest fiber, but your good gut bacteria do. It scrubs your insides, steadies your blood sugar, and helps clear out waste. And put down the Metamucil. Fiber supplements don’t bring the same benefits. Your body needs the real thing, from whole plants.
The second big body of evidence comes from the Seventh-day Adventists, a Christian church whose members often skip meat. Researchers followed more than 34,000 California Adventists for fourteen years. The ones who ate mostly plants lived longer than anyone else in California, and maybe the world. Vegetarian men lived to about 83 and women to about 86, compared with 76 and 81 for the average American. Add exercise and no smoking, and it rises to 87 and 90. And they don’t live on a remote island. Loma Linda, home to a large Adventist community, sits in the middle of southern California.
The Adventists who ate meat had the biggest waistlines and died sooner. But they also ate more sugar, soda, and refined grains. That’s the catch. You can go vegan and still eat badly, so avoiding animal foods isn’t enough. The first rule still comes first: choose whole foods over processed ones. Don’t be a junk-food vegan.
Chapter 4 — Reverse-Engineering Longevity
”Unbeing dead isn’t being alive,” the poet E. E. Cummings wrote. You don’t just want a long life. You want a healthy one. The authors argue that a whole foods, plant-based diet can lengthen both your life span and your health span, the years you spend well.
To show how, they turn to Dan Buettner, the explorer who went looking for the places where people live the longest. He called them Blue Zones, and he found five: Okinawa in Japan, Sardinia in Italy, Ikaria in Greece, Nicoya in Costa Rica, and Loma Linda in California. Research on Danish twins suggests genes explain only 20 to 30 percent of how long you live. The rest comes down to how you live. Buettner sums it up: “The longest-lived people eat a plant-based diet. They eat meat but only as a condiment or a celebration. Nothing they eat has a plastic wrapper.”
Okinawa, a chain of tropical islands southwest of mainland Japan, has one of the world’s highest shares of people who reach 100. They have half the dementia of Americans the same age. In Sardinia, the Blue Zone isn’t a beach. It’s Ogliastra, the island’s most rugged mountain region, where shepherds scratch out a hard living. The longest-lived men on earth walk those mountain paths.
The plates look different, but the pattern matches. “Greens and beans,” Buettner says. “No matter where you go in the Blue Zones, they are eating a lot of green vegetables and about a cup of beans a day.” Sardinians love fava beans and chickpeas. Ikarians eat wild mountain greens. Nicoyans eat black beans with corn and squash. Only a small share of Adventists skip animal foods completely. Everyone else eats a little meat or fish, often only on special occasions. Cow’s milk and cheese barely show up.
They keep their drinks simple too: water, coffee, tea, and a little wine. No sodas, no energy drinks, no Frappuccinos. Okinawans keep green tea close by all day. Ikarians, Sardinians, and Nicoyans love their coffee. The Adventists skip alcohol entirely.
The surprising part is that none of them were trying. “Longevity happened to these people,” Buettner explains. “They didn’t seek it out.” In these remote places, whole plant foods were simply the cheapest and easiest things to eat. Their days of walking, gardening, cooking, time with friends, and faith just happened to be healthy. They got modern medicine but stayed far enough away to escape modern food. That’s changing. In Okinawa, people under sixty now have more chronic disease than Americans.
Still, the Adventists show that the average person could add 10 to 12 years by living a Blue Zones lifestyle. Buettner’s lesson is that lasting change comes from “nudges and defaults,” not top-down rules. Set up your life so the healthy choice is the easy one. That’s what his team now does in local communities: better restaurant menus, community gardens, walking paths, healthy food by the checkout, and potlucks. He calls it “a healthy swarm of nudges and defaults.”
Chapter 5 — Let Food Be Thy Medicine
An old saying goes, “When diet is wrong, medicine is of no use. When diet is correct, medicine is of no need.” Heart disease kills more than 375,000 Americans a year. It’s the number-one killer in the United States and in the world.
Most heart disease starts the same way. Plaque made of fat and cholesterol builds up on your artery walls, and the arteries harden and narrow. If a plaque bursts, it can cause a clot that blocks the artery and triggers a heart attack or stroke. As the saying goes, genetics may load the gun, but diet pulls the trigger.
For years, the standard answer was surgery. Dr. Dean Ornish pushed back: “I don’t understand why asking people to eat a well-balanced vegetarian diet is considered drastic, while it is medically conservative to cut people open.” Ornish and Dr. Caldwell Esselstyn of the Cleveland Clinic showed that heart disease can be reversed. Their patients stopped eating the foods clogging their arteries and ate plants instead. In Ornish’s program, they also exercised, practiced relaxation, and joined a support group. They began to heal, at any age.
Greger puts it plainly. There’s only one diet ever proven to reverse the number-one killer, he says, and it’s “a whole foods, plant-based diet. So shouldn’t that be the default recommended diet until proven otherwise?”
It also changes how you see your test results. When your cholesterol or blood pressure is high, you’ll likely get a pill to bring the numbers down. But the numbers are warning signs, not the disease. The disease is damaged arteries. Picture a leaky pipe in your roof. One day a stain spreads across your ceiling. If you just repaint, you’ve hidden the evidence without fixing the leak, until you wake up to a flooded living room. That’s why the authors say to keep animal foods to 10 percent of your calories or less.
Chapter 6 — The Epidemic of Our Time
The medieval physician Maimonides wrote, “No disease that can be treated by diet should be treated with any other means.” Diabetes is a good test of that. It’s when blood sugar can’t get into your cells, so it builds up in your blood instead.
Like heart disease, type 2 diabetes has been reversed with diets low in animal foods. It isn’t always easy. “I hated the food for about two months until my taste buds changed,” one person who did it admitted. “Meals with no salt, no oil, and no processed foods can and will taste good if you give them a chance.” Never underestimate the body’s ability to heal, given the right foods.
You may have heard of the glycemic index, which ranks foods by how fast they raise your blood sugar. Major health groups, including the American Diabetes Association, have questioned it. A low score doesn’t make a food healthy. And you rarely eat one food alone. What’s on the rest of your plate changes the effect.
Chapter 7 — The Great Grain Robbery
”The best lies contain a kernel of truth.” The low-carb trend has convinced many people that carbs make you fat and sick. The authors disagree. Dr. John McDougall points out that “throughout civilization and around the world, six foods have provided our primary fuel—barley, corn, millet, potatoes, rice, and wheat.”
Starchy foods fill you up, so people tend to eat fewer calories when starch is the center of their plate. They also bring vitamins, minerals, and a gut-friendly fiber called resistant starch. McDougall has no patience for plant diets built on kale and celery. “You must have starch as the center of your meal plan,” he says. “Once you get the starch foods as the centerpiece, then everything works.”
What matters is whole versus refined. A whole grain keeps the whole kernel, with its fiber and nutrients. White flour keeps only the starchy center. Whole grains are linked to less belly fat, and refined grains to more. So read labels. “Multigrain” just means more than one kind of flour, and all of them can be refined. Choose brown rice, whole wheat pasta, and 100 percent whole grain bread. Unless you’re among the 2 to 3 percent of people with celiac disease or a gluten problem, wheat is fine.
The bottom line: carbs don’t make you fat or sick, as long as they’re whole foods. Whole grains, starchy vegetables, and beans should be the base of your diet.
Chapter 8 — The Caveman Cometh
This chapter takes on the Paleo diet, and it’s where the authors explain their most specific number. Why 90 percent plants, and not 100? They say it isn’t a compromise. Vegans and vegetarians do far better than people on the standard American diet, and diets with little or no animal food have reversed heart disease and diabetes. But no study has compared a 100 percent plant diet with one that includes up to 10 percent animal foods. Until one does, the evidence doesn’t show that going all the way is healthier.
Either way, they suggest two more steps: eat from the Essential Eight food groups, which come in chapter 10, and take a few key supplements. The most important one comes up next.
Chapter 9 — So, What Should I Eat?
With the science laid out, the book turns to daily life. The goal is simple: 100 percent whole foods and 90 percent or more plants. Eat lots of fruits, vegetables, whole grains, and beans, plus some nuts and seeds. Cut out highly processed food, especially refined flour, sugar, and oil. If you eat animal foods, keep them under 10 percent of your calories. The only whole plant foods to watch are the calorie-dense ones: nuts, seeds, olives, avocados, and dried fruit.
Eat your fruit instead of juicing it. “It turns out fruits and vegetables are perfectly packaged,” Dr. Garth Davis writes. “The sugars in fruit are designed to work almost like a time-release pill,” thanks to the fiber. Juicing strips that out, which is why juice cleanses make little sense. “You can’t detox without fiber,” Davis says. Blend a smoothie if you want. Better yet, eat the fruit whole.
The advice that surprises people most is to skip all refined oils, even olive oil and coconut oil. Olives and coconuts are full of nutrients. Their oils have lost those nutrients and all their fiber. Olive oil and coconut oil have barely more nutrients than sugar and more than twice the calories. One tablespoon of any oil has 120 calories and doesn’t fill you up at all. So skip fried foods, check labels for added oil, and learn to love salads without it. For something sweet, reach for fruit or dates. Add salt at the table instead of in the pot, so you taste more and use less.
If you eat animal foods, choose grass-fed, organic meat and dairy, pasture-raised eggs, and wild-caught fish. Avoid big fish like tuna and swordfish, which carry more mercury. Skip processed meats like hot dogs, bacon, and ham. The World Health Organization now puts them in the same cancer category as cigarettes and asbestos.
The most common worry is protein. But plants have protein. How else would elephants and giraffes live on them? Beans, whole grains, nuts, and even greens are good sources. The government recommends 46 grams a day for women and 56 for men. The average American woman between 20 and 49 gets more than 70, and the average man well over 100. Too much can overwork your kidneys and liver. If you eat enough whole food calories, it’s nearly impossible to fall short on protein. And you don’t need to combine rice and beans. Almost any whole plant food has complete protein on its own.
A few other worries don’t hold up either. Your body absorbs calcium from kale and broccoli more easily than from milk. One study estimated that if half of Americans ate more fruits and vegetables, about 20,000 cancer cases a year could be prevented, while the extra pesticides might cause up to ten. And alcohol isn’t a health food, whatever the headlines say. The one nutrient a mostly plant diet truly lacks is vitamin B12. A supplement is a must for vegans and a good idea for anyone eating this way.
Chapter 10 — The Essential Eight
The authors name eight food groups to eat every day. First are whole grains and starchy vegetables, like potatoes, yams, squash, corn, brown rice, and quinoa. These should make up most of your calories. Despite their reputation, they help you lose weight, because they leave you full and less likely to snack. Second are beans and other legumes. Scientists have called eating them “the most important dietary predictor of survival in older people of different ethnicities.”
Third are berries, every day if you like them. Frozen ones are just as good as fresh. Fourth are all the other fruits, from apples and bananas to mangoes and melons. Blend a frozen banana with soy milk, and you have a plant-based ice cream. The only fruits to limit when you’re losing weight are avocados and olives, which are high in fat.
Fifth are cruciferous vegetables, the cabbage family, like broccoli, cauliflower, Brussels sprouts, and kale. Fuhrman calls them “the most powerful anticancer foods in existence.” Sixth are leafy greens like spinach, chard, and romaine. Seventh are all the other vegetables: carrots, peppers, mushrooms, zucchini, onions, and more. Eighth are nuts and seeds. They’re high in calories but filling. If you’re trying to lose weight, keep them to less than a handful a day.
Chapter 11 — Healthier and Happier
Many people will try hard workouts, pills, even surgery before they’ll change what’s on their plate. With food, people are more emotional than rational. Science can convince you to change, but it can’t make you do it. Food is a big source of happiness, and no diet that takes that pleasure away for long is going to last.
Part of the problem is that your taste adapts. Processed food, loaded with fat, salt, and sugar, gives your brain a big hit of dopamine, its reward chemical. Once that feels normal, whole foods taste flat. The psychologist Douglas Lisle and Dr. Alan Goldhamer call this the “pleasure trap.” It works like an addiction. You’re sure you’ll never enjoy eating again without your favorites. But your palate resets. Give it thirty to ninety days, they say, and whole foods start tasting good again.
Don’t try to get there on small portions and willpower. Going hungry makes you crave rich food even more, and sooner or later hunger wins and you binge. Whole plant foods are less calorie-dense, so you get to eat more, not less. Fill up, and don’t go hungry.
And notice what’s behind a craving. If it isn’t hunger, food won’t fill the hole. Drink a full glass of water and ask what you really need. Comfort eating is like wearing shoes you love that pinch your feet, then getting a back massage instead of changing shoes. It feels good for a while, but your feet still hurt.
Chapter 12 — Making the Shift
You can make the change slowly or all at once. In their earlier book, The Forks Over Knives Plan, Pulde and Lederman have people switch one meal a day each week: breakfast first, then lunch, then dinner. Or you can spend a week or two cutting out processed food, then phase out animal foods. If you want to go all in, the 28-day plan in chapter 14 walks you through it.
Start with your why. Maybe you want to lose weight or stay active into old age. Maybe you want to reverse heart disease or diabetes and get off your medications. Maybe you’re supporting someone you love, or you’ve decided for ethical reasons to stop eating animals. Any of these works, so own it. Then picture what you’ll gain: the grandchildren you’ll watch grow up, the places you’ll travel, the retirement you’ll enjoy.
Cravings will come. As Mark Twain wrote, “There is a charm about the forbidden that makes it unspeakably desirable.” Don’t panic. Notice the flavor you want, and find a healthy version. Missing ice cream? Blend frozen fruit with cashews, and add cocoa for chocolate. Want a soda? Blend frozen berries into sparkling water. Make these ahead of time, because the moment a craving hits isn’t the time to start cooking.
One of the best ideas in nutrition is “crowding out.” Fill your plate and your stomach with the good stuff, and there won’t be much room for anything else. Try eating in three courses. First, fruit or vegetables, like a salad before lunch or soup before dinner. Think of it as your weight-loss medicine and multivitamin. Second, filling whole foods like grains, potatoes, and beans. Eat big portions of both. Third, and only if you’re still hungry, richer foods like nuts, avocado, or animal foods. If you want seconds, go back to the first two courses first.
Everyone has a food that makes them ask, “You mean I can never have that again?” So never say never. Write your deal breakers on a piece of paper and take them off the table. Have one now and then, as long as it doesn’t become a slide back into old habits. What counts is what you do most of the time.
Eating out takes planning. Help pick the restaurant, or eat at home first and order a salad. Find support, too. Almost every expert the authors spoke with named it as the thing that makes or breaks this change. If you take medication, see your doctor first. This way of eating can lower blood pressure and blood sugar fast, and your doses may need to change. Above all, keep it simple. Learn to cook a few meals you love, and eat them often. Don’t worry whether kale is better raw or cooked. Just eat whole plant foods.
Chapter 13 — Change Your Plate, Change the World
Mackey wrote this chapter himself, and it looks past your own health. He knows veganism and health aren’t the same thing, since you can be a junk-food vegan. But he believes the way most people farm and eat is hurting people, animals, and the planet, from climate change to emptying oceans to lost forests.
Even low estimates say animal farming makes about 18 percent of the world’s greenhouse gases, more than all transportation combined. Growing feed crops uses 56 percent of the water in the United States. That’s why Mackey says, “I don’t think there is a single greater act of environmental activism than moving to a plant-based diet.” And you don’t need to eat animals to be healthy.
Chapter 14 — 28 Days to Transform Your Health
The 28-day Eat Real Food Plan starts with two steps: clean house and stock up. Clear out the foods you won’t eat anymore, and give them to a food bank if you hate the waste. Then fill your kitchen with the basics.
Stock whole grains, dried and canned beans, oatmeal, whole grain pasta, and oil-free marinara. Fill the freezer with fruit and vegetables for busy nights. Buy fresh produce a week at a time. Add tofu, oil-free hummus, whole grain bread, nuts, and plenty of herbs and spices.
Plan a week of meals at a time, and pick meals that share ingredients so nothing goes to waste. If you can, set aside a couple of hours on Sunday to batch-cook staples for the week. Freeze extra portions for nights when all you can do is heat and serve.
Chapter 15 — Whole Foodie Recipes
The book ends with recipes to put it all into practice. There are whole wheat blueberry pancakes for breakfast, a smoky bean chili, a kale Waldorf salad, an Austin Taco Bowl, and a mushroom stroganoff. You also learn the basics, like how to cook beans and how to sauté without oil. For dessert, there’s raspberry “nice cream.”
It’s a fitting place to end, because everything in this book comes back to what’s on your plate. You don’t need to memorize the studies or count a single calorie. You need a few meals you love, made from food that came off a tree, a vine, or a root. Give your palate the thirty to ninety days it needs to reset, and the change stops feeling like a diet. It’s just how you eat. That’s the skillful eater the book set out to make: someone whose favorite foods and healthiest foods are the same thing. Food is still celebration, and it’s still connection. Now it’s your medicine too.