(10 mins) Transcript. Study after study shows that eating copious amounts of additional nuts doesn't lead to any weight gain. Dr Greger calls this the "Mystery of the Missing Calories" — where did all those extra calories consumed vanish?

(2 mins) Transcript. This video has three proposed explanations for the 'Missing Calories': Pistachio principle (manual shelling of nuts slows us down, giving us that extra moments to realize that we've eaten enough, thereby making us eat less)? Chewing of raw foods (the tedium of chewing leads us to eat less)? Fecal excretion theory (many cell walls of chewed nuts remain intact, so they simply pass through)?

In the fourth video below ("Testing the Dietary Compensation Theory"), he introduces a fourth proposed explanation: nuts make us feel full, so we don't feel like eating as often, thereby reducing calories from other sources.

(1 min) Transcript. One study showed that neither consumption of whole peanuts nor peanut butter led to weight gain. So this study provided no evidence for either of the three theories outlined in the previous video.

[But in Part 5 below ("Testing the Fat-Burning Theory"), Dr Greger mentions that about 10% of the "missing calories" can be explained by fecal excretion theory — he doesn't cite evidence for that throughout the 7-part video series].

(2 mins) Transcript. Question: Are nuts 'satiating', so we don't feel like eating as often, thereby reducing calories from other sources? An interesting experiment suggests that this is true.

(2 mins) Transcript. In this video, Dr Greger explains that 3 factors seem to explain why all those extra calories from nuts didn't lead to weight gain: About 70% disappear due to dietary compensation, about 10% flushed away due to fecal loss and about 20% lead to increased fat burn.

(2 mins) Transcript. Maybe arginine explains the increase in fat burn proposed in Part 5 ("Testing the Fat-Burning Theory")? Good sources of arginine? Pumpkin seeds (#2), Squash seeds (#3), Watermelon seeds (#4), Sesame seeds (#7), Peanuts (#8), Soybeans (#9), Peanut butter (#10), Tahini (#11), Almonds (#12), Pine nuts (#13), Fava beans (#14), Sunflower seeds (#15).

In another video, Dr Greger suggests dropping commercially sold peanut butter because it contains roasted nuts (they have high amounts of AGEs)

(2 mins) Transcript. Maybe flavanoids can increase thermogenesis (heat generation) and fat oxidation? One more reason to eat more nuts and have green tea.