I asked it "How trustworthy is realfood.gov?" It gave me a pretty long response that seemed decent. One part of it said:

"Ironically, the site integrates a Grok AI chatbot (from xAI) for answering nutrition questions, and reports indicate Grok sometimes provides responses that contradict or qualify parts of the site's own guidelines (e.g., noting concerns about evidence quality for certain emphases or that most Americans already get sufficient protein)."

Overall it was pretty positive about the site. Then I asked it, "Is HHS Secretary Robert F. Kennedy Jr. a trustworthy source of nutrition info?" It responded with some positive things, but was happy to call out his bullshit as well, and concluded:

"In summary, RFK Jr. is a mixed bag as a nutrition source: authoritative by virtue of his position, with some valid points on processed foods that resonate with experts, but his lack of specialized expertise, history of misinformation, and controversial guideline changes make him unreliable for many in the scientific community. For personalized nutrition advice, it's best to cross-reference with sources like registered dietitians, peer-reviewed studies, or organizations such as the American Heart Association, rather than relying solely on any single figure or policy."

I wonder if they know what it "thinks" about him.