You should contact your GP if: You have been found to have elevated B12 levels on blood tests, particularly if levels exceed 1000 ng/L (approximately 740 pmol/L, though laboratory reference ranges vary) and you are not taking high-dose supplements You develop new symptoms after starting B12 supplementation, including persistent skin rashes, significant gastrointestinal disturbance, or unexplained symptoms You have underlying liver disease, kidney problems, or blood disorders and are considering B12 supplementation You are taking B12 supplements without medical supervision and have not had your levels checked, particularly if taking doses exceeding 2000 micrograms daily You experience symptoms that might indicate underlying disease, such as unexplained weight loss, persistent fatigue, jaundice, or abdominal swelling Call 999 or go to A&E if you develop severe allergic reactions following B12 injections, including difficulty breathing, facial swelling, or widespread rash, as these may indicate anaphylaxis, though this is extremely rare

These farmers should consider the impact of less vitamin B12/cobalt and selenium going into their animals and revisit their supplementation plan to ensure growth is not limited by a mineral deficiency.
Rate of weight loss comparison Retatrutide not only produces more total weight loss but appears to produce it faster
"Maintain cleanliness and avoid administration during wet or dusty conditions." Sheep and cattle can also be exposed to sub-clinical mineral deficiencies if they cannot meet their nutritional requirements from consumed feed during critical stages of the production cycle, such as before joining, lambing/calving or weaning
I dont feel as energetic as I thought I would but maybe its too soon