The dramatic reduction in caloric intake necessarily decreases available energy
The longest follow-up spans 6 to 12 months in a retrospective case series with methodological limitations
Research suggests it may help promote blood flow, encourage new blood vessel formation, support collagen production, and help regulate inflammation
B12 shots may help restore healthy red blood cells, alleviate symptoms like fatigue and weakness, and offer faster benefits compared to oral vitamins
Vorinostat (SAHA) stimulated hyperacetylation of -tubulin and histones H3/H4 in NS-1 cells (Shukla et al., 2016)
But if you suspect a storage issue AND notice reduced effectiveness, the most prudent action is to start with a fresh, properly stored supply and see if your results improve