: Does eating sugar before sleeping reduce muscle regeneration and growth? I was very underweight most of my life (BMI 15-16) and gained a bit of weight (BMI 18.5 now) during the recent months via training (at home) and eating

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Does eating sugar before sleeping reduce muscle regeneration and growth?
I was very underweight most of my life (BMI 15-16) and gained a bit of weight (BMI 18.5 now) during the recent months via training (at home) and eating more. Most of that gained weight is apparently muscle, my body fat is still low and not going up. So, I am not worried about gaining extra fat, and this question is only related to muscle regeneration and growth.

I started going to a gym about a week ago, my primary goal is muscle growth. My trainer told me that eating sugar in the evening is a bad thing because it affects the processes of muscle regeneration and growth. This is how he explained it:

Eating sugar increases insulin
Insulin inhibits somatotropin, the "growth hormone"
Somatotropin is produced mostly during the sleep, thus increasing insulin in the evening, especially before sleeping, will greatly affect muscle regeneration and growth

I am skeptical about two things here:

Q1. Is that insulin spike really that big? I train late in the evenings, and after training, I first eat the dinner and only then eat some cookies or chocolate, 100-200g maximum. (My body mass is 63.5kg at the moment.) I would think that all that sugar is being consumed quickly and there is not that big of a spike of insulin anyway.
Q2. Does insulin production increase during the whole night just because I ate some sugar before going to bed? I would assume that it fades away quickly and then somatotropin has all the time to do its things.

I really like eating sweet food before going to bed, but I don't want to undermine my training.

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