For these individuals, vitamin B12 injections are often the most effective way to restore healthy B12 levels because they bypass the digestive system entirely, delivering the vitamin directly into the bloodstream for maximum absorption (around 95% compared to 25-50% for oral supplements)
Insert the needle straight into the pinched skin at a 90-degree angle
What works in your favor What needs planning Takeaway Stable dose, manageable side effects, and a cooperative prescriber put most GLP-1 users in a good position to apply
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That "can lead to hair thinning and hair loss, brittle nails and sensitive, dry or irritated skin," Goldenberg says
If 8mg produces good weight loss results with acceptable tolerability, remaining at that dose is a clinically reasonable outcome