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Some people report mild issues such as injection-site irritation, headaches, nausea, fatigue, or water retention

Some doctors prescribe B12 shots for people with low B12 levels or conditions that make it hard to absorb B12 from foods and supplements

SUSTAIN-6, 2016 GLP-1 receptor signaling in the hypothalamus and hindbrain modulates satiety and food-reward pathways, a focus of ongoing neuroscience research

CagriSema combination therapy: Synergistic effects of cagrilintide and semaglutide

GLP-1 physiology in obesity and development of incretin-based drugs for chronic weight management

This could be helpful for someone who prefers not to have injections