Yes—in a small German study, the middle reading for bad cholesterol rose from 157 to 256 mg/dL. The April 2025 study followed 24 people in Germany eating a Carnivore Diet. Each person chose their own version of the diet. Researchers surveyed them and compared blood tests taken before and during it. The main finding was a sharp rise in LDL Cholesterol, often called bad cholesterol. The median, or middle reading, increased by 99 mg/dL. Median Total Cholesterol also rose, from 224 to 305 mg/dL. These are group figures, not the change every person experienced. This small study cannot show what will happen to everyone eating this way. Earlier survey results showed a similar concern. A 2021 survey included 2,029 people who said they followed the diet. They reported high satisfaction and few side effects. Yet among those sharing lab results, LDL Cholesterol was 172 mg/dL. Feeling good and blood test results can tell different stories. A January 2026 review found only nine human studies from 2021–2025. Most were surveys or reports about individual people. None tracked heart attacks or strokes. The review concluded that current evidence does not support recommending the diet long term. For BioSocial members, before-and-after bloodwork offers more context than feelings alone. Uploading results alongside dates and food notes can make community comparisons more useful. Those notes help show how routines differ, without treating one person's results as everyone's forecast. What changes have you seen in your cholesterol numbers, and how did they compare with how you felt?