Low ferritin on GLP-1s?

took 3mg on march 11 then left the country for a camp. meals are rice, protein, veggie, juice—not counting cals but not super hungry either. getting 10-12k steps daily, one protein pop tart every day. can't wait to see what a week abroad does.
 
The mood and appetite regulation working together makes sense neurologically. Brain reward system adjusting is real and worth noting with your doc if it persists.
 
55 and on my third pacemaker. three years ago i was pacing 78% of the time. now i'm averaging 24-34%. nothing else changed, just this med. my dysautonomia improved too. never thought i'd see it.
 
drop in blood sugar can hit you hard with nausea. didn't happen on mounjaro but did on jardiance - sudden hunger and nausea and i had to eat something fast. diarrhea too, that stopped. learned to eat a little snack every 1-2 hours, even just a few crackers.
 
The ferritin versus iron distinction is so important and so consistently missed on routine panels. Ferritin can be critically low even when transferrin saturation and hemoglobin look normal. The GLP-1 connection is real too - reduced food intake means less dietary iron absorption, and the metabolic changes can increase utilization. Asking specifically for a ferritin test and setting a target number - most functional practitioners aim for above 70 - is more useful than the typical lab reference range.
 
Low ferritin with GLP-1s is worth ruling out as a separate absorption issue before escalating to IV - the reduced intake on the medication often means micronutrient density per meal drops alongside calories, and iron is one of the first to fall short.
 
The decision threshold for IV iron is usually symptoms plus functional impact, not the number alone - ferritin in the 170-180 range is suboptimal for active people, and on a GLP-1 with reduced intake, keeping it supported is easier than recovering from a deeper deficit.
 
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