Vegetable oils are plant-based, but they are not whole foods. Basically, oil is just fat extracted from olives, nuts, seeds, corn, palm, coconuts, or other sources. Oils are the processed remains of plant foods and have little nutritional value.
It was long believed that because animal-based protein contains all the essential amino acids needed by the body, and is utilized faster, that it is superior to plant protein sources. Now we know that faster is not better. Animal proteins speed the growth of bad tissues- like cancer cells- along with muscle cells, and also increase the risk of liver and kidney disease.
Any positive changes you make will have a positive impact on your health. Virtually every diet that has ever been published has touted the benefits of increasing consumption of fruits, vegetables, and whole grains. While going 100% plant-based would be the best thing for your body, it’s OK to transition over time or at least be mostly plant-based.
There are so many little benefits to eating a whole food plant-based diet it’s hard to consolidate them into one list, yet that is exactly what I have tried to do here…some are serious and some are trivial, but I can attest to all twenty!