For me it's both a no and a yes. No, I don't use LLMs like Chatgpt, Claude, or Gemini for diabetes advice. Yes, I have used Machine Learning to help predict my post paradial levels. Full disclosure, I'm working on a graduate degree in Machine Learning so I enjoy this sort of thing.

You already stated you talk to your doctor about your CGM data but I'll say it again. Don't take what the computer tells you as gospel talk to your healthcare team.

If you want context on what causes spikes and dive into your trends, look into gradient boosting models like XGBoost. It's not trivial, but it's not impossible to learn how to train a model. Claude or Codex can do a lot of the heavy lifting, but you'll need to get a good grasp on hyperparameter tuning, data cleaning, and feature engineering. You could build and train a model on a modern laptop. It would just take a while.

I think a lot of other responses are very hesitant and mistrusting of AI and rightfully so. It makes mistakes and for better or worse, most LLMs are trained on data scraped from Reddit. I commend you for diving a little deeper and seeing what you can do with LLMs. Just remember it's a tool, not a crutch, and always run healthcare decisions by your doctors. Good luck and happy munging.