The Sirtfood Diet is a low-calorie diet that focuses on consuming foods with polyphenols, called sirtfoods, that help facilitate weight loss through activation of the metabolism. The diet is based on research on sirtuins, a group of proteins that regulate several functions in the body. The creators of the diet claim that it can supercharge weight loss, turn on your “skinny gene,” and prevent diseases. The diet includes two phases, and participants are expected to consume a specific green juice and SIRT food meal as directed by their phase. The list of the “top 20 sirtfoods” provided by the Sirtfood Diet includes kale, red wine, strawberries, onions, soy, parsley, extra virgin olive oil, dark chocolate (85% cocoa), matcha green tea, buckwheat, turmeric, walnuts, arugula (rocket), bird’s eye chili, lovage, Medjool dates, red chicory, blueberries, capers, and coffee.

Positive aspects of the Sirtfood Diet include the consumption of mainly plant-based, antioxidant-rich foods. The diet may also help improve digestion and reduce inflammation throughout the body.

Negative aspects of the Sirtfood Diet include its restrictiveness and the potential for it to be expensive. The diet may also be difficult to maintain while eating out.

Overall, the Sirtfood Diet is a low-calorie diet that focuses on consuming foods with polyphenols, called sirtfoods, that help facilitate weight loss through activation of the metabolism. While the diet may have some positive aspects, it is also restrictive and may be difficult to maintain.