When supplements are taken orally, you lose up to 80% of the vitamins nutritional value as it moves through your digestive tract
doi: 10.1016/j.biopha.2020.110660
Rare side effects of B12 shots (require medical attention) Serious reactions to B-12 shots are uncommon, but its important to be aware of them: Allergic reaction, including rash, hives, dizziness, or trouble breathing Significant swelling, pain, or warmth that worsens at the injection site Palpitations or chest discomfort Signs of drug interactions, especially if you take multiple prescription medications If you experience symptoms that feel intense, progressive, or unusual, you should contact your provider right away
The inflammatory environment of the body significantly affects how well immune-modulating peptides can work
What research is there to support the health and fitness claims