I used to bullshit with Belknap at Golds, Venice in 1993-94. He would pop in to train in the mornings occasionally, but only on a Saturday or Sunday. I remember asking him about his diet for his America win. He told me very very surely...that he only ate 45-90 grams of protein per day for that show. Said he did 45 grams on non-training days and 90 grams on training days. And said that his carbs were 100 grams per day max....straight through the entire diet. And his fats were at zero or whatever trace amounts were intramuscularly in his protein after being trimmed. He said it was 800-900 calories a day.
And add to that....he said that he only ate his 45 gram protein day protein...all in one sitting. The rest of his meals were carbs only. Said he suffered immensely during his prep.