Want to eat a high (good) fat low carb diet but it makes my acid reflux act up terribly. Take daily Prevacid (lansoprazole) now. Any advice?

Avoiding triggers. Daily or uncontrolled heartburn despite a PPI (like Prevacid) is a warning sign to stop whatever is triggering it. Fats commonly trigger acid reflux &heartburn, & are thought to do so by relaxing the lower esophageal sphincter.Although Gaviscon is a good add-on med,& lifestyle measures (raise head of bed, avoid eating late, avoid caffeine etc) can lower symptoms,it's best to avoid known triggers.