There is overlap between whole-food, plant-based (WFPB) and vegan diets, but there are also some key differences. A vegan diet can include highly processed imitation meats and cheeses; a WFPB diet eschews these products in favor of whole or minimally processed, close-to-nature foods that make it easy to meet your nutritional needs.
There are plenty of other foods you can also enjoy, including nuts, seeds, avocados, tofu, tempeh, whole-grain flours and breads, and plant-based milks. However, we recommend eating these foods in moderation, because they are more calorie-dense and can contribute to weight gain.
A whole-food, plant-based diet is extremely effective at promoting cardiovascular health and preventing, halting, and in some cases even reversing heart disease, the leading cause of death in the United States. A 2021 review of 99 studies found that diets rich in whole and minimally processed plant-based foods were associated with significantly lower risk of cardiovascular disease compared with diets high in meat and dairy products.
There are several reasons for this. Animal-based foods are high in saturated fat and cholesterol, which raise blood cholesterol levels, causing fatty, wax-like plaque to build up in the arteries. Highly processed foods often contain excessive salt, which raises blood pressure, damaging the lining of the arteries over time. By eliminating these harmful foods from your diet and replacing them with whole plant-based foods, you can bring down your cholesterol levels, blood pressure, and risk of heart disease. Learn more about diet and heart disease here.
A 2018 report in BMJ Open Diabetes Research & Care found that for people with Type 2 diabetes, plant-based diets were more beneficial than the diets recommended by several diabetes associations, offering greater improvements in physical and emotional well-being.
Plant-based diets are low in saturated fat (a culprit behind insulin resistance) and high in fiber, which helps the body to regulate blood sugar and properly absorb nutrients. Plant-based diets also reduce the risk of being overweight or obese, a primary risk factor for Type 2 diabetes. Learn more about diabetes and diet here.
Plant-based or plant-forward eating patterns focus on foods primarily from plants. This includes not only fruits and vegetables, but also nuts, seeds, oils, whole grains, legumes, and beans. It doesn't mean that you are vegetarian or vegan and never eat meat or dairy. Rather, you are proportionately choosing more of your foods from plant sources.
What is the evidence that plant-based eating patterns are healthy? Much nutrition research has examined plant-based eating patterns such as the Mediterranean diet and a vegetarian diet. The Mediterranean diet has a foundation of plant-based foods; it also includes fish, poultry, eggs, cheese, and yogurt a few times a week, with meats and sweets less often.
The Mediterranean diet has been shown in both large population studies and randomized clinical trials to reduce risk of heart disease, metabolic syndrome, diabetes, certain cancers (specifically colon, breast, and prostate cancer), depression, and in older adults, a decreased risk of frailty, along with better mental and physical function.
Plant-based diets offer all the necessary protein, fats, carbohydrates, vitamins, and minerals for optimal health, and are often higher in fiber and phytonutrients. However, some vegans may need to add a supplement (specifically vitamin B12) to ensure they receive all the nutrients required.
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We spoke with clinical nutritionist Sabrina Toledano, MS, RD, a certified dietician-nutritionist who counsels patients at the Pancreas Center of NewYork-Presbyterian/Columbia University Irving Medical Center, to find out more about plant-based eating.
A plant-based diet is not a vegetarian or vegan diet; you can eat poultry, beef, eggs, fish, and dairy products, however most of your nutrient intake is coming from plant-based food sources. There is no set ratio of plant to animal foods on a plant-based diet, but at least 2/3 of each plate of food (or meal) you eat is a good way to start. The emphasis should be on plants.
Yes. A plant-based diet is considered to be nutrient-dense and packed with fiber, healthy fats, protein, vitamins, and minerals. It is a very healthy way of eating and can meet all of your nutrient needs.
Most adults can benefit from a plant-based diet. Research shows plant-based diets may prevent and treat chronic diseases and reduce dependence on medications. If you suffer from a digestive disease, consult your doctor prior to changing your diet.
To start: Each meal or snack should be made up of 2/3 plants and no more than 1/3 animal product (egg, yogurt, fish, or poultry). As you get used to eating more plants, try limiting yourself to one animal product a day.
Amy Richter is a registered dietitian who specializes in skin conditions and gut health. She owns The Acne Dietitian, a blog and private practice dedicated to helping people with acne achieve clear skin using diet and lifestyle changes.
People who follow vegan diets abstain from consuming any animal products, including dairy, meat, poultry, seafood, eggs, and honey. Vegetarians exclude all meat and poultry from their diets, but some vegetarians eat eggs, seafood, or dairy (3).
A study in 65 people with overweight or obesity found that those assigned to a WFPB diet lost significantly more weight than the control group and were able to sustain that weight loss of 25 lbs (11.5 kg) over a 1-year follow-up period (6).
A large study in over 200,000 people found that those who followed a healthy plant-based diet rich in vegetables, fruits, whole grains, legumes, and nuts had a significantly lower risk of developing heart disease than those following non-plant-based diets (9).
Similarly, another recent study showed that greater consumption of nutritious plant-based foods was linked to a lower risk of aggressive forms of prostate cancer, especially in men under 65 years (13).
A study in more than 200,000 people found that those who adhered to a healthy plant-based eating pattern had a 34% lower risk of developing diabetes than those who followed unhealthy, non-plant-based diets (19).
Another study demonstrated that plant-based diets could be beneficial for the prevention of type 2 diabetes, especially when they included nutritious plant-based foods like fruits, vegetables, whole grains, nuts, and legumes (20).
The study reported that a 70% reduction in greenhouse gas emissions and land use and 50% less water use could be achieved by shifting Western diet patterns to more sustainable, plant-based dietary patterns (22).
A healthy, WFPB diet should focus on plant foods like vegetables, fruits, whole grains, legumes, nuts, and seeds. If animal products are eaten, they should be eaten in smaller quantities compared to plant foods.
A plant-based diet consists of exclusively plant foods, including fruit, vegetables, grains, and legumes, and avoids meat, dairy, and eggs. Plant-based foods are full of fiber, rich in vitamins and minerals, free of cholesterol, and low in calories and saturated fat. Eating a variety of these foods provides all the protein, calcium, and other essential nutrients your body needs. It's important to include a reliable source of vitamin B12 in your diet. You can easily meet your vitamin B12 needs with a daily supplement or fortified foods, such as vitamin B12-fortified breakfast cereals, plant milks, and nutritional yeast.
Those who eat a plant-based diet lower their risk for heart disease, type 2 diabetes, obesity, and other health conditions. Research also shows that a plant-based diet can be less expensive that an omnivorous diet.
People who eat a plant-based diet have a lower risk of dying from heart disease when compared to non-vegetarians. Plant-based diets have been proven to prevent and reverse heart disease, improve cholesterol, and lower blood pressure.
If you've given any thought to cancer prevention, you have probably thought about your diet. Almost every week a new trend is hitting the health food headlines. It can make it almost impossible to settle on what to eat and not eat.
It supports your immune system. Plants have essential nutrients that you cannot get from other foods. The vitamins and minerals, phytochemicals and antioxidants in plants help keep your cells healthy and your body in balance so that your immune system can function at its best.
A plant-based diet helps maintain a healthy weight. Staying at a healthy weight is one of the most important things you can do to reduce your risk for cancer. When it comes to cancer, the only thing more important than maintaining a healthy weight, is not smoking.
Limit sugary desserts as well and make sure you are picking whole grains. Regular pasta, white bread and white rice may be plant products, but they are not made from whole grains. Choose 100% whole wheat pasta and bread, and eat brown rice.
In another study, which was published in September 2019 in Translational Psychology, researchers concluded that this diet is beneficial for boosting metabolism, managing weight, and reducing inflammation, especially among people with obesity and those with type 1 and type 2 diabetes.
Another study found that a plant-based diet may play a role in preventing and treating type 2 diabetes, and the authors cite research that suggests this diet may help reduce the risk of other chronic illnesses, including cancer. One review suggested that a plant-based diet has a positive effect on emotional and physical well-being, quality of life, and general health for people living with type 2 diabetes, while also improving physical markers of the condition in this population.
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