Secretary of State Marco Rubio said his brief stint on the keto diet left him so irritable he would have been ready to declare war had he been secretary of state at the time.“I did, at one time, maybe four, five years ago, I tried this thing called keto. And you just eat all this protein. And so you go through this massive withdrawal from sugar and carbohydrates. For the first 72 hours, it was a near psychotic event for me,” Rubio said on The Katie Miller Podcast Tuesday.

“It’s like if I did this in this job, I would be in it ‘Mr. President, we must bomb, you know, Paraguay,’ and it’s like, why? I don’t know, I’m just really mad. I haven’t had any sugar,” Rubio said.“I’m not against this diet. I’m not asking that we ban it. I encourage people to try it. I’m just saying it’s not for everyone. That’s what I’m saying,” Rubio added.

Marco Rubio is just not a diet guy:“I tried keto once. “It was a near-psychotic event for me. If I had been in this job while doing it, I would’ve been like, “Mr. President, we must bomb Paraguay.”“And it’s like, why? I don’t know. I’m just really mad. I haven’t had any… pic.twitter.com/PXsqLCW1kG— Katie Miller (@KatieMiller) August 12, 2026

Rubio recalled trying the low-carbohydrate, high-protein diet several years ago and said the initial adjustment was particularly difficult. Rubio also made clear that he has little interest in adopting Kennedy’s diet, which emphasizes foods such as meat and fermented vegetables, but noted that he encourages people to try it.