Ryan talked about how a company called Keto Go-Fit Advanced Formula was using their name and face to promote their products.
"All false!" he wrote above an article about their alleged involvement. He claimed that the only company they work with is with Ketologic who he included as a swipe up option in his Instagram Story.
"If you couldn't read the last post it's the second company today I've seen claiming we've used their products to be successful," he wrote in an Instagram Story. "That is a lie! If you don't see it here it's not reliable."
"Keto does NOT require products to be successful!" he also wrote. "We've chose to use one that helps keep us consistent and take the guess work out of a meal a day. The only product we ever taken I've attached with a swipe up link here."
Ryan and Briana, 32, have credited Keto for dropping over 100 pounds in the past year.
Vicki Gunvalson's only daughter has shown off her slimmer figure multiple times on Instagram in outfits that range from a tank top and denim shorts to a form-fitting nurse's outfit.
Her trimmer appearance has caught notice of many fans and RHOC costars including Tamra Judge who recently said she was "looking hot" in the comments section of her Instagram snap.