Insane celebrity weight-loss transformations: Mama June, Jennifer Hudson and more

Weight loss is a lifelong journey.

It's an emotional and difficult process for anybody, and there are unique pressures on celebrities who are constantly in front of the camera. Personal insecurities and health concerns contribute to why so many stars get serious about getting in shape.

Mama June's 2017 transformation, for which she went under the knife for a collection of procedures, was one of the most dramatic celebrity makeovers of all time. But she's not the only star who shed major pounds over the years. See all of Hollywood's wildest weight loss accomplishments in the video above.

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