[sambe]

I don't think it is "common knowledge" - in fact, I think it's almost entirely untrue. Fats in general are calorifically dense, and you will "get fat" by eating a lot of them regardless of if they are "good" or "bad". Good fats may be better for heart disease etc. Some fats are also essential in the diet. Fine. Good vs bad calories is nonsense.

[sambe]

Umm... just downvoting today? Is there something specifically that you disagree with? Do you feel the need to downvote when you disagree with something?

- All fats are more than twice the calorific density of carbs/proteins. Disagree? - Good fats will still make you put on weight if you eat a lot of them. Disagree? - Predominate attribute used to decide "good"/"bad" is effect on heart/cardiovascular health. Disagree? - Essential fats cannot be metabolised by the body from simpler substances. Disagree? - All calories have the same energy content by definition, and apart from details will make you fat at the same rate per amount eaten. Disagree?

I think it's pretty obvious that I don't believe "fat [alone] makes you fat" as in the quote but health fat most certainly will if you eat a lot of it. I haven't read the famous popular book on the subject, but my understanding is that the thesis is based on things like satiety and a new take on heart health, not a fundamental difference in "types of calorie" re: weight gain. Regardless, downvoting seems inappropriate.

[evanchen]

I upvoted you.

As a nutrition/fitness buff I completely agree with the comment. There is no good or bad calorie when it comes to weight loss. You eat good fats for health reasons, but as far as weight gain/loss goes, it is purely a function of calorie intake-- no matter the source.

[tommizzle]

Ok, lets try a different example:

John and Dave both eat the exact same 3 meals every day, for 30 days. When they both come home, they both do exactly the same workout. After the workout John has 50g of whey protein powder @ 110 calories, whilst Dave has 110 calories worth of coca cola (~290ml).

Now, given that protein helps muscle growth, and the more muscle you have, the more calories you burn, who loses the most fat after the 30 days?

[evanchen]

You are mixing two variables here. If you get 100 calories from orange juice vs. coca-cola, then yes, they are the same. If both John and Dave are receiving enough protein prior to the coca cola/whey protein, then they will burn the same amount of calories as well.