Most people who eat only meat do it because they want to lose weight, feel more energetic, or fix problems like allergies, skin issues, or stomach troubles.

Most German adults who go on a carnivore diet do it to feel better, especially if they have long-term health problems like autoimmune diseases or weight issues—about two-thirds have a diagnosed condition and say they're trying to improve their health.

Most people in a small group of German meat-eaters started the carnivore diet because they had health problems, and they kept it up because they felt healthier — suggesting this diet tends to attract people who already have medical issues.

People in Germany who eat only animal-based foods for about a year often say they feel healthier, have more energy, think more clearly, and feel better if they had health problems before.

People on a meat-only diet for months say they feel healthier, more full, sleep better, and have more energy and mental clarity — and most say they do it for health reasons, even though science hasn't fully proven these benefits.