Mos def that's why it's important to have a well balanced diet. "Simply" dumping fruits and veggies is beyond retard, but protein is also an essential component to the human diet....Super low carb diets are not environmentally sustainable.... humans started cultivating grains etc to address a growing inability for hunter gatherer lifestyles to feed the population.
You can't go back. The planet cant really handle the corresponding overconsumption of meat that low carb diets create.