Best Restrictive
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Best
1
The Grapefruit Diet
The Grapefruit Diet is a short-term, very restrictive diet that centers around consuming grapefruit with every meal. It's based on the unsubstantiated claim that grapefruit aids in fat burning. It's n...
6.0
Fair
2
The Cabbage Soup Diet
The Cabbage Soup Diet is a very short-term, extremely restrictive diet that involves consuming primarily cabbage soup for several days. It's a fad diet with no scientific basis and can lead to nutrien...
5.5
Average
3
The Cookie Diet
The Cookie Diet involves replacing most meals with specially formulated cookies. It's a highly restrictive and unhealthy diet with no scientific basis. It's considered a fad diet and is not recommende...
5.0
Average
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