toldu'e lujvo

x1 is a shortage/deficiency/insufficiency/derth/too little of x2 by standard x3.

See also mo'a, moxna

In notes:

jinkytoldu'e
t1=j1 is an immune-system deficiency of j2.
mo'anzu
x1 is too little/insufficient in x2 (ka) to be/do x3 (ka).
moxna
x1 is not enough/an insufficient amount/too little/too few of x2 by standard x3.