The mood-beneficial effect of milk/dairy and plant proteins stems from their high biological value: they contain complete essential amino acids (e.g., tryptophan, tyrosine) that are critical for neurotransmitter synthesistryptophan is the precursor of 5-hydroxytryptamine (5-HT, a key mood-regulating neurotransmitter), and tyrosine is the precursor of dopamine (related to motivation and pleasure) (31)
Concerning the regulation, CT2 seems to respond to progesterone stimuli (Sato et al., 2007)
If needle aversion or compliance with a daily protocol is a concern, PRP's in-office model may be preferable
People searching for how quickly B12 helps with weight are usually hoping for a magic switch, but the honest answer is that it works best as one supportive piece of a broader plan
That is a coincidence of separate experiments, not a measured result