That same stomach-slowing window is why oral birth control needs backup
B12 shots can fix deficiency-related fatigue and restore normal appetite in people who were depleted
Its safety profile is well-established over decades of clinical use
Most people get enough lysine from foods in their diet including red meat, cheese, fish, and eggs, but "athletes, burn patients, and vegans who do not eat beans may need more," according to Mount Sinai
8-12 hours IM) Preferred by 64% of patients who've tried both Intramuscular (into deltoid or vastus lateralis, using a 22-25 gauge, 1-inch needle): 41% report injection-site soreness Faster absorption More difficult self-administration for some sites (deltoid requires non-dominant arm injection) Preferred by 36% of patients who've tried both The efficacy difference is minimal