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Wilted kale and spinach both lose a crazy amount of volume. I wonder how that would affect the experiment. It would be much easier to eat a large volume. Just fry in a pan with a bit of salt and oil.

Also, does caffeine in soda (so often paired with this meal) speed digestion enough to make blood sugar spike? I always assumed that caffeine increases your metabolism, but I didn't consider that speeding digestion is worse for blood sugar.

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The experiment with sautéed kale and spinach is worth a try. If it is made too soft though, it may not slow down digestion much.

I hypothesize that a mix of coarse vegetables, for example, one that includes broccoli, kale, red cabbage, and cauliflower, would slow down the digestion rate even more than 10 oz of kale. Replacing the kale with dino kale would make this mix even better.

I didn't drink soda with the meal, simply because I don't normally drink soda with this meal, but an experiment with a caffeinated beverage would be easy enough to do.

One of the things we're working on is quantifying how different things, such as caffeine intake, affect your metabolic rate. This is the subject of an upcoming blog post.

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