The Ins and Outs of a Plant Based Diet

Updated: Mar 1, 2019

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.

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, 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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