Oprah Winfrey has warned fans not to purchase weight loss products using her name and image.On Sunday, the 68-year-old media mogul took to Instagram to set the record straight about weight loss gummies claiming to be endorsed by her. In a short video, the former talk show host cautioned her followers not to fall for online scams using her likeness in its advertising.“And so it happened to me again today,” she began the video. “A woman came up to me and said, ‘Can you help me get your weight loss gummies?’ And I said, ‘Ma’am, I don’t have anything to do with weight loss gummies.’”]Oprah Winfrey