Her advice? The same as it’s always been: “Just work out, eat clean, and don’t overeat,” she emphasized. “I promise you: Balanced diet—it’s that simple.”
Michaels isn’t the first expert to speak out against keto.
The keto diet is a divisive topic among registered dietitians and other health expert. Kristen Kizer, a registered dietitian at Houston Methodist Hospital, told Prevention in a previous interview that long-term reliance on ketones—the chemicals produced when your body breaks down fat—for energy could be harmful. “Those ketones are emergency fuel sources, and we’re not meant to run on them long-term,” Kizer said. “Ketones are negatively-charged molecules, which means they’re acidic. When you build up ketone bodies in your system, you’re building up acid. One of the ways your body buffers acid is by pulling calcium from your bones.” She also said the keto diet isn’t very balanced, and because it involves a higher intake of animal products, it offers little protection against cancer, diabetes, and other diseases.