If you take the principals of a Med diet and make them lower carb you can
Decrease metabolic symptoms, such as FLD.
Decrease body fatness while maintaining or improving lipid panels in obese people
Has better compliance as a low carb model
It also goes to wonder why perhaps if the Med diet is holding up, why is the biggest longitudinal study
retracted? Among criticisms that the research was flawed and downright fraudulent?
Now I'm not a keto follower, I believe in a few principals. That Flour is processed food, and junk food. And sugar is an empty calorie. Cutting those out and keeping carbs at a manageable .5g/lb is the optimal level for humans. I don't think you can hit .5g/lb with any flour or sugar in your diet, and get the rest of your macros correct. If you can. Cheers.
This approach gives you the benefits of lower insulin and other hormone levels that you don't want, and allows you to recover from resistance training sufficiently. Most would call this type of diet "primal". Focus on stuff we ate a long time ago, primarily.
The Med diet is flawed IMO in that it basically says, remove junk food (good) and replace it with whole grains and avocados, and olive oil and some fish. For me the issue here is that the science is pretty aligned on the fact that if you raise fat in a high carb environment you are going to cause weight GAIN in a huge subset of the population. Not all, but some (and the NEJM people basically dropped them from the population saying they "didn't comply") oops. This is the fraud that the Med. Diet guys pushed on us. So now you have people eating fat bombs and a salmon and cream cheese bagel (Whole wheat mind you) for lunch and don't see results. hmmm....wonder why?
TL
R the Med diet is flawed in that if you increase fat without cutting carb you will cause metabolic stress and weight gain if calories are kept even remotely isocaloric. It's completely bull####.
You can argue all day that keto is not optimal for many reasons (mainly that it's really too meat centric and SFA centric), but the reasons it is not optimal are not reasons others are a better options and as long as you recognize this and work to change that you will be in good shape.