Definitely, it's a healthy lifestyle with clean & green foods. It's much like any other "diet" that suggests healthy foods and proper portions.
The difference is that in the beginning (and as needed for life) you add the lemon water and green tea for detoxification and metabolism boost. AND you work on your "self-talk" and attitudes to bring your body/mind/spirit into "balance".
Here's a link to a an article that explains her plan much better than I can:
And... here's a link to a site that shows you the daily eating plan for the first week: