No but it sells. Search for diet books....there are so many and people are buying it.
See, even one book i got that go release 2 days before, are making into top 100 in amazon kindle
https://www.amazon.in/dp/B07W94DS8S I posted only this book, because like u said Beyonce diet, this covers some diets beyond Keto (the world trend today, I dont know y)
Just stay happy...yes its the most vital recipe.
Second, spend time with family and exercise 50:50
Means, 30 mins for YOGA, 30mins for something a bit strainful. At the age of 50, even brisk walking for 30 mins is a good strenous exercise.
Eat everything...in limit. PERIOD!