Waterborne diseases have been a concern since the dam burst, due in large part to the lack of clean drinking water.
"The State of Israel stands by the side of the Ukrainian people," said Foreign Minister Eli Cohen.
MKs Yuli Edelstein and Ze'ev Elkin wrote a letter to Ukraine's Zelensky, condemning the attack on the dam which they blames Russia for.
Moscow and Kyiv blamed each other for the destruction of the Kakhovka Hydroelectric Station and dam, which unleashed flood water from the Dnipro River.
Many have been left without adequate drinking water, while many animals have been killed and people have been forced to evacuate from their homes.
Millions of liters of water burst through a gaping hole in a Russian-controlled dam, flooding a swathe of the war zone in southern Ukraine.