I cannot overstate the value of this book and its companion app, Daily Dozen. Information about both is available at www.nutritionfacts.org. I absolutely loved the book and, although it was long, I was sad to see it end. This is a book that will stay with me for the long haul, however, because I have incorporated the lessons into my daily life.
I have eaten a generally healthful diet for a long time, but HNTD gave me so many good ideas for easy, evidence-based tweaks. Since January 1, 2016, I have further optimized my nutrition with the very handy, free Daily Dozen app, available through Google Play Store and the App Store.
Dr. Greger has dedicated his career to promoting health and wellness through nutrition. He introduces the book with the inspirational story of his grandma who was sent home in a wheelchair to die of heart disease when he was a child. She saw a 60 Minutes segment featuring Nathan Pritkin’s then-new lifestyle medicine center and traveled across the country to give herself one last chance by checking into it. After adopting Pritkin’s plant-based diet and beginning to exercise, she left death’s doorstep at age 65 to live a rich, full life, until she died at 96. Dr. Greger was so moved by his grandma’s amazing recovery that he vowed to become a physician and help people transform their own lives through the way they lived them.
This wonderful book is the most well-researched, comprehensive nutrition and lifestyle book I have ever read . . . and I have read quite a few.
Part One is a fascinating, detailed presentation of solid scientific evidence for using nutrition and lifestyle to prevent, fight and even reverse 15 leading causes of death: heart disease, lung disease, brain disease, digestive cancers, infection, diabetes, hypertension, liver disease, blood cancer, kidney disease, breast cancer, suicidal depression, prostate cancer, Parkinson’s disease and iatrogenic (caused by medical care) causes. Chapter by chapter, Dr. Greger highlights scientific studies in each of these areas and presents evidence illuminating the most health-promoting foods, as well as the riskiest ones, for each health condition.
Then, in Part 2, Dr. Greger introduces his Daily Dozen, from which the app was born, and explains chapter by chapter why he strives to include each component in his day. I love this app and am using it every day. I truly believe that the adjustments I have made to achieve the Daily Dozen goals have taken my largely whole-food, completely vegan, diet to a new level of wholesomeness and quality. I am not perfect, but I do my best to set myself up to achieve each Daily Dozen objective.
The components of his Daily Dozen are these:
Beans: Dr. Greger makes a compelling case for consuming three daily servings of beans (including tempeh or tofu, which are soy foods). Toward this end, I have adopted the practice of adding some variety of bean to my morning smoothie. I put so many good things in there anyway, and beans add a wonderful creaminess. I also have simplified the lunches I pack for work: a variety of bean, a large serving of greens (heated together at work) and guacamole. It may sound boring, but it is wonderful . . . and simple.
Berries: A daily serving of berries is easy and delicious to include in a smoothie or as a snack. They are so full of antioxidants and fiber that they are widely recognized as a “super food.”
Other Fruits: Dr. Greger cites studies indicating that increased fruit consumption is correlated with better weight management. This is just one of many reasons he recommends three additional fruit servings per day.
Cruciferous Vegetables: Sulforaphane is the component in cruciferous vegetables that earns them a separate category in the Daily Dozen. Dr. Greger presents persuasive evidence that sulforaphane is a cancer-fighter. It has been shown to have potential benefits for vision, nasal allergies, type 2 diabetes and autism. Broccoli, cauliflower, kale, bok choy and Brussels sprouts are just some of the tasty routes to accomplishing the daily cruciferous vegetable serving goal.
Greens: I have added greens to my smoothies for years, and Dr. Greger presents many strong reasons to incorporate at least two servings of raw or cooked greens into our diets each day, on top of whatever cruciferous vegetable we are eating. I firmly believe, and Dr. Greger presents corroborating evidence, that these are some of the most healthful foods we can eat.
Other Vegetables: Besides a serving of cruciferous vegetables and two servings of greens, eating two more vegetable servings each day will add a variety of other valuable nutrients to our dietary profile. Most of us have heard the recommendation to “eat a rainbow.” Dr. Greger explains that richness of color matters not just in greens, but in other fruits and vegetables, too. For instance, red onions have more phytonutrients than white onions, and sweet potatoes are more nutritious than white potatoes.
Flaxseeds: Omega-3 fatty acids and lignans have been shown to be protective against cancer and to promote heart and brain health. Dr. Greger recommends a tablespoon of ground flaxseeds per day. I already made sure to include an Omega-3 source in my daily smoothie—flax, chia, hemp or walnuts—and now I include flax and possibly one of the others, but always flax, at minimum.
Nuts and Seeds: Sure, nuts and seeds have a high fat content, but it is health-promoting monounsaturated fat. Because these foods are satiating, one serving a day can nourish us with healthful fat and protein, while lessening the chance of overeating less healthful foods.
Herbs and Spices: Specifically, Dr. Greger recommends ¼ teaspoon daily of turmeric because of its documented ameliorative benefits for a host of conditions ranging from pulmonary disease to rheumatoid arthritis. This is easy to incorporate into my daily smoothie, if I am not going to be eating other foods that lend themselves to turmeric flavoring. Dr. Greger encourages the liberal use of most herbs and spices to add a range of phytonutrients, while minimizing the need for salt.
Whole Grains: Dr. Greger promotes the consumption of three servings daily of whole grains because of evidence that they are associated with reduced risk for stroke, obesity, type 2 diabetes and heart disease. There are so many from which to choose, and Dr. Greger recommends eating a variety of different grains.
Beverages: Water is high on Dr. Greger’s list, but he also presents evidence for drinking green, white, black and herbal teas. Green tea has particularly healing benefits. Dr. Greger acknowledges that hydration needs are quite individual and even vary within a given person, depending on weather and exercise conditions. However, he recommends five servings as a minimum each day.
Exercise: Although not a food, exercise is part of Dr. Greger’s Daily Dozen because of its well-documented benefits for physical and mental health. Rather than sell the public short with his recommendation, he prefers to provide evidence for a relatively high dose of exercise daily. Especially during the cold, dark off-season from cycling, it is difficult for me to meet Dr. Greger’s exercise recommendations every day, but I give it my best effort, within the confines of real life. I remember the mantra from my graduate Exercise Science program, “Any exercise is better than no exercise, and, to a point, more is better than less.” I have lived this for a long time. Even if I can’t go for a bike ride every day, I exercise daily, and I love (often to my son’s frustration) to build in opportunities for exercise, like parking as far as possible from a store, taking the long way to or from the bathroom at work or walking, instead of driving, to a basketball game here in my small town. It all adds up.
Besides his Daily Dozen, Dr. Greger promotes eating according to a “traffic light” system. Foods that get the green light—unprocessed plant foods—should be emphasized. Yellow-light foods are processed plant foods and unprocessed animal products. These foods should be minimized. Processed animal products and ultra-processed plant foods comprise the red-light category. These should be avoided completely.
Dr. Greger defines “unprocessed” as “nothing bad added, nothing good taken away.” Ultra-processed plant foods have no redeeming nutritional value.
His simple model is an easy way to make choices on a daily basis. He sees room for yellow-light foods to the extent that they promote consumption of more green-light foods. His example is his fondness for hot sauce that contains added salt. He eats more greens because he likes them with this hot sauce, so it has a place in his diet. While I have long emphasized unprocessed plant foods, I have taken that to a higher level after reading HNTD. For example, I am using dates in place of agave nectar or maple syrup when my smoothies need a sweetener. Dates are whole and unprocessed, while agave nectar and maple syrup are processed. Vegan yogurt (Daiya cherry!) is a treat for me. I eat more whole-grains and berries, as well as nuts and cacao nibs, when I eat it, so I have continued to eat it as an occasional treat, although it is a yellow-light food, since it is processed. The bulk of my daily food is unprocessed plant-based goodness, though, and this feels wonderful.
Dr. Greger states that he is not promoting a vegan diet, so much as he is promoting an “evidence-based” diet. It just so happens that the diet that promotes health and minimizes sickness is also one that increases compassion in our world. He entered the plant-based world because of its demonstrated health benefits, but he has become a strong supporter of the ethics behind veganism over the years.
I respected Dr. Greger’s work before reading HNTD, but I am a true fan now—so much so that I plan to become a regular donor to his foundation because it aligns with all of my most important core values: compassion, excellence, integrity and fitness.
I will end this post with the quote that Dr. Greger used to conclude his book. Dr. Kim Williams, upon assuming the post of president of the American College of Cardiology in 2015, explained his rationale for eating a completely plant-based diet this way, “I don’t mind dying. I just don’t want it to be my fault.” I love that. We all have so much power to maximize our chances for a long, healthy life. Yet, so many of us abdicate our responsibility for our own well-being, relinquishing this power to genetics or chance or fate. Yes, things happen. Yes, we will all die of something. Yes, sometimes people who lead apparently very healthful lives die prematurely of cancer or heart disease or stroke. These things are all true, but it is also true that many more deaths and so much suffering could be prevented if we all took the steps Dr. Greger recommends in How Not to Die. His book is a tremendous gift in an immensely readable and highly accessible package. Please read it, adopt this lifestyle and save yourself, the animals and the planet in the process.