Khloe Kardashian.Photo: Khloe Kardashian/Instagram

Khloe Kardashian detox teas

Sen. Richard Blumenthal, a Democrat representing Connecticut, sent a letter to the chairman of the Federal Trade Commission on Tuesday expressing “our deep concern” over detox teas and shakes and “their false promotion as shortcuts to healthy weight loss and management.”

“These products, marketed to adolescents and young adults through celebrity endorsements and social media for weight loss and wellness, are ineffective at best and dangerous at worse,” Blumenthal wrote.

The Senator named several brands in particular, including Fit Tea, Lyfe Tea and Flat Tummy Co., whichKhloé KardashianandKim Kardashian Westhave endorsed.

Blumenthalsingled out Kardashian Westin his letter.

“Kim Kardashian, a powerful influence on young women, recently raved about how Flat Tummy Co.’s products are ‘helping me get my tummy back to flat,’ implying that these products are an integral part of achieving this level of fame and success,” he wrote. “Additionally, celebrities can reportedly earn six-figure sums for a single social media post promoting a ‘detox tea,’ frequently without any expectation that these celebrities personally use these teas and expose themselves to the products’ associated dangers, in violation of the FTC’s Endorsement Guidelines.”

PEOPLE has contacted Flat Tummy Co. for comment.

Those potential dangers in the teas, Blumenthal said, are from the senna leaves and seeds that makeup the ingredients.

“Research has shown that girls and young women who begin using laxatives — like those found in ‘detox teas’ — for weight loss are at a higher risk for developing eating disorders, and the American Academy of Pediatrics recommends that adolescents avoid these products completely due to their associating with eating disorders.”

RELATED VIDEO: Jameela Jamil Applauds Khloé Kardashian for Deleting Diet Shake Instagram Ad: ‘There Is Hope’

“She has stated that ‘I was the teenager who starved herself for years, who spent all her money on miracle cures and laxatives and tips from celebrities on how to maintain a weight that was lower than what my body wanted to be. I was sick, I have had digestion and metabolism problems for life.’ ”

Blumenthal’s goal is to get the FTC to investigate the companies that sell detox products “and take appropriate enforcement action to protect unwitting consumers from harm.”

source: people.com