Umami is a taste that is stimulated by amino acids and nucleotides. It is a savory, mouth filling, brothy, flavor intensifier that you experience regularly but may have never identified. This is why I think of it as a three dimensional taste.
Folate deficiency can cause anemia. Anemia is a condition in which you have too few RBCs. Anemia can deprive your tissues of oxygen it needs because RBCs carry the oxygen. This may affect their function. Folate is particularly important in women of childbearing age. A folate deficiency during pregnancy can lead to birth defects.
Anemia may not mean iron deficiency. Anemia is a sign of a disease, not a disease itself and its complexities extend far beyond sickle cell and iron deficiency. It is condition resulting from a significantly decreased number of red blood cells, which carry oxygen throughout the body. Anemia often causes fatigue, dizziness, weakness and pale nailbeds.