Here’s the story. About 1 year and half ago I went to get my annual blood work done, the doc said I had iron deficiency and prescribed me a supplement. At that time I also made some dietary changes adding more red meat to my diet. This week I went to have another private blood test to see if there’s been any improvement and ferritin turned out at 180 ug/L (30-400), my serum iron was 75 ug/dL (75-160) and TIBC was 329 (250-450). However, I don’t know what to make out of those results as ferritin and tibc are very good, yet serum iron is borderline low. It also puts my iron saturation at 23% which is also on the lower side I think. Could it mean I’m still deficient?
Reason being I’m asking is because I do experience stuff like fatigue, lack of concentration and brain fog, although all other blood markers such as test, thyroid function, vitamin D etc appear to be in optimal range.