Santosh Sadan replied to Devi Radha Dasi's discussion Why is Masoor dal (red lentils) prohibited in Vaishnava diet?
"Hare Krishna,

It is understood that it is because of the very high content of protein in Masoor Dal that strict vaishnavas avoid it from their bhoga offerings. In fact Masoor Dal (red lentils) contains more protein that equal weight of Meat.

Hunti…"
May 14