Allah Most High says:
مَّا الْمَسِيحُ ابْنُ مَرْيَمَ إِلَّا رَسُولٌ قَدْ خَلَتْ مِن قَبْلِهِ الرُّسُلُ وَأُمُّهُ صِدِّيقَةٌ ۖ كَانَا يَأْكُلَانِ الطَّعَامَ ۗ انظُرْ كَيْفَ نُبَيِّنُ لَهُمُ الْآيَاتِ ثُمَّ انظُرْ أَنَّىٰ يُؤْفَكُونَ
The Messiah son of Mary was not but an Apostle. The Apostles from before him all passed away (died). His mother (Mary) was a truthful woman. They both used to eat food. Look how We make clear for them the Signs, then look how they are deluded!
Elsewhere, Allah says:
وَمَا أَرْسَلْنَا قَبْلَكَ مِنَ الْمُرْسَلِينَ إِلَّا إِنَّهُمْ لَيَأْكُلُونَ الطَّعَامَ وَيَمْشُونَ فِي الْأَسْوَاقِ
And We did not send before you (O My Prophet ﷺ) from the Messengers except that they ate food and walked in the markets (Sura 25:20)
وَمَا أَرْسَلْنَا قَبْلَكَ إِلَّا رِجَالًا نُّوحِي إِلَيْهِمْ ۖ فَاسْأَلُوا أَهْلَ الذِّكْرِ إِن كُنتُمْ لَا تَعْلَمُونَ ﴿٧﴾ وَمَا جَعَلْنَاهُمْ جَسَدًا لَّا يَأْكُلُونَ الطَّعَامَ وَمَا كَانُوا خَالِدِينَ ﴿٨﴾
And We sent not before you, [O Prophet ﷺ], except men to whom We revealed [the message], so ask the people of the message if you do not know. And We did not make for them bodies not eating food, nor were they immortal. (Sura 16:7-8)
In other words, all of the Prophets, being mortal human beings including Jesus of Nazareth, required nourishment in order to sustain their bodies and consequently their worldly lives. But in the first Verse I cited, Allah says that both Jesus and his mother Mary (peace be upon them both) used to eat food, the third person, dual perfect verb كانا being for the past tense. In other words, Jesus does not eat at present like his mother. Now while those Muslims who believe that Jesus is physically alive affirm that his mother Mary is deceased, the wording of this Verse leaves no possibility of a distinction in that regard. If those Muslims argue that this Verse does not prove the death of Jesus, they will have to likewise say it doesn’t affirm a death of his mother Mary in order to avoid inconsistency. Furthermore, they would have to confess that at present Jesus is living and being sustained without food, something which is impossible according to the other Verses of the Holy Quraan which I cited.