Kelly Clarkson
Kelly Clarkson is a star who consistently promotes body positivity. However, her fans were surprised when she appeared after losing 17 kilos in 2018. According to the singer, her autoimmune diseases and thyroid problems were the reason behind her weight fluctuating over the years. Clarkson followed some advice from the book The Plant Paradox, by Steven R. Gundry to change her diet, which led to her losing that weight.