Flawed study.

Recap the very-low-fat plant-forward diet: 70% of calories came from carbs, 15% from protein, and 15% from fat, and it was heavily based on legumes, whole grains, vegetables, fruit, and berries.

They did not include in the study the VETO plant based diet. Very low carbs, low fats, only monosaturated fats, no table sugar (sucrose), no white flour, no cow's milk, etc. and high plant based protein, with lactobacillus cultured non dairy "yogurts".

The standard Keto diet suffers from saturated fats, and while the adherents seem to have better results at first, decades later they will suffer arteriosclerosis and cardiovascular problems.