Nah, as a diabetic in remission who has lost 40 lbs I can tell you that Keto and its subset carnivore work.
Carbs are a recent, as in 10k year old, dietary development that is at odds with our bodies.
Processed foods are the worst.
Exercise can not outcompete the mouth.
I do Tai Chi and walk ~3 miles a day but its what I eat that has made the most difference.
I am the healthiest I have been in 30 years. I gave up most carbs and 99.9% of sugar ( I will have a taste of something from time to time like 1/4th a normal sized cookie.)
I get carbs from the occasional keto bread, zero sugar dessert and low carb vegetables. I try to stay below 20g per meal.
My veins in my arms and legs are visible as if I was a weight lifter. I have not lifted weights in well over 3 months and my definition has only improved. I intermittently fast and some days I only do carnivore. My legs had become hairless but the hair has returned. I went from heart failure to a normal EF
Grains are bad for you. ALL of them. Some are less bad than others but still bad.
People who push low/no meat diets have in my opinion agendas because they buy into climate crisis nonsense or are animal rights nuts.
People on carnivore diets are showing perfect blood work with the exception of cholesterol. Everything your body needs can be found in meat, dairy, eggs and animal products.
The same can NOT be said of a vegan or vegetarian diet.
But that too is a boogeyman promoted by big pharma. Its not a problem unless you have inflammation in your arteries. Cholesterol tries to fix the damage and over time clogs your arteries.
I am a little over a year into my journey and I can tell you in my case keto has made a world of difference in my health.
The proper human diet: