A foundational diet should include at least these four factors that are agreed upon by all experts in this field, whether they lean toward low-fat, low-carb, paleo, vegan, Mediterranean, or other:

i. Emphasize/increase whole foods
ii. Emphasize/increase vegetables in particular (and specifically non-starchy vegetables)
iii. Minimize/avoid added sugars
iv. Minimize/avoid refined grains
https://www.reddit.com/r/loseit/comments/80rmtd/hi_im_professor_christopher_gardner_professor_of