Why is the Martha's Vineyard Diet Detox considered a fad diet?

Why is the Martha's Vineyard Diet Detox considered a fad diet?

Andrea Giancoli (Registered Dietician ) gives expert video advice on: What is the Martha's Vineyard Diet Detox?; What does the Martha's Vineyard Diet Detox promise?; How do I follow the Martha's Vineyard Diet Detox? and more...

The Martha's Vineyard Diet Detox is considered a fad diet because it's highly restrictive, it promises very quick weight loss, it promises to help you get healthier through these detoxing and possibly help prevent diseases, and there is no scientific backing behind it.