The speaker transitioned to an animal-based diet after experiencing electrolyte deficiencies, muscle cramps, and sleep disturbances from long-term ketosis on a carnivore diet.

“except that long-term ketosis didn't work well for me i've done previous videos about why i'm not a fan of long-term ketosis and in short it was that for me it caused really severe electrolyte deficiencies which manifested as heart palpitations muscle cramps and sleep disturbances”