Is there one diet for all? Alkaline diet, Vegan diet, Low Carb diet, Carnivore diet, Omnivore diet, Paleo diet?

Is there one diet for all? Alkaline diet, Vegan diet, Low Carb diet, Carnivore diet, Omnivore diet, Paleo diet?
We are SO lucky living in the country. Uniformity may be something we’ve been programmed to accept as ‘good’ or ‘safe’, but the joy of an oversize googy egg is still with me 65 years after my first experience.