Supplementing with vitamin B12 can prevent deficiencies, but you must be careful while picking the right supplement
Risk factors that should prompt consideration of B12 deficiency include advancing age (reduced stomach acid production), strict vegan or vegetarian diets, pernicious anaemia, gastrointestinal surgery (particularly gastric bypass or ileal resection), long-term use of certain medications (metformin, proton pump inhibitors, H2-receptor antagonists), nitrous oxide exposure (including recreational use), and conditions affecting the gut such as Crohn's disease or coeliac disease
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Unlike traditional treatments that target blood flow, PT-141 works directly on the nervous system to enhance sexual desire and arousal
Some animal studies have also explored BPC-157s ability to reduce inflammation
Taking both together makes sense for most people, though folate status should be adequate before starting high-dose b12 to avoid masking folate deficiency