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Description
The most common site is the abdomen, at least a couple of inches away from the navel

Most healthy adults do not experience an immediate energy surge, although some individuals with deficiencies, chronic fatigue, or age-related declines may notice improvements in endurance

Placebo group showed no statistically significant change at any time point

doi: 10.1074/jbc.M204527200 245 de WinterTJJNusseR

The inhibition of choline transport and metabolism, using hemicholinium (HC-3), and RSM932A, which target the choline transporter and ChoK, respectively, dramatically impacted macrophage responses to IL-4

Shah JJ, Orlowski RZ