- Carbohydrates: 4 cal/g
- Proteins: 4 cal/g
- Alcohol: 7 cal/g
- Fat: 9 cal/g
As you can see, William could not have been much worse off sipping lard.
On one hand, William was able to get back on his horse again. We know this because he died of complications by falling off of it. You could say he was successful, because he was able to get back on the horse, or unsuccessful because he had trouble staying on it.
Either way, he was allegedly too large to fit into his coffin at burial time and his body was said to have bloated in the afternoon heat and exploded from all the prodding, leaving a reportedly unbearable stench in the church. Any time your body explodes, it's typically the sign of a failed diet.
Yet, in 1964, Robert Cameron put William's philosophy into print with The Drinking Man's Diet, which emphasized cutting carbohydrates, but whose main attention-getter was its recommendation of alcoholic drinks, which generally contain very few carbs. While he neglected to emphasize that alcohol has almost twice as many calories per gram, and that it may not be the healthiest of substances to incorporate into your regular diet, this was brought up rather vocally by doctors at the time. We have to question Cameron's actual motivation here, just as people questioned ours when we came up with the Porn Diet.
The fact that "beer belly" is a common term in modern lingo goes to show that we've pretty much got the idea.