No, that's standard zionist policy.If they are starving it is because Hamas is taking their food.
Starve Palestinians to death.
2008

Israel counted calorie requirements of Gazans during blockade
Defense Ministry says newly-revealed 2008 document was never used to restrict the flow of food into the strip

today
Israeli minister orders food reduction for Palestinian prisoners
Israel’s National Security Minister Itamar Ben-Gvir says he has ordered a further reduction in the amount of food offered to Palestinian prisoners in Israeli jails, advancing a policy that rights groups have compared to forced starvation.
After October 7, Ben-Gvir closed prison canteens and kitchens, leaving Palestinian detainees entirely reliant on the prisons themselves for food.
In a letter on Wednesday, however, he said he gave further instructions to reduce the amount of food given to the prisoners. He said the move was aimed at deterring attacks from fighters, but he did not explain how the two could be related.
The Association for Civil Rights in Israel has challenged the food restrictions in court, arguing they amount to a policy of starvation.
Citing prisoner testimony, the rights group says the food provided is insufficient and unhealthy and has led to “severe damage to [prisoners’] health and dignity”. It says the prisoners suffer from “constant hunger, extreme weight loss [and] forced fasting” and are held in “veritable torture conditions”.
Since the start of the war, the number of Palestinian prisoners has ballooned, as Israel carried out large-scale raids in the Gaza Strip and the occupied West Bank. The total number of Palestinians held by Israel has climbed to about 9,000 since October 7.