Did Jesus abstain from all food and drink during his 40-day fast?

The 3 Gospel texts do not say whether Jesus drank but with God's miraculous intervention (if we interpret Ex 34:28 literally which says "Moses was there with the Lord forty days and forty nights without eating bread or drinking water") Jesus may have abstained from water as well, which He could very well able to do since Jesus had a divine nature.

Christianity teaches that while Jesus was sojourning on earth he took on an additional human nature, and on THIS basis (100% human being) we are supposed to imitate Jesus as an exemplary man fully devoted to God. BUT it is foolhardy to interpret Matt 4:2 as an assurance that we can do 40 days fasting without water whenever we want to, since Matt 4:2 leaves open whether God's miraculous intervention was present or not, and we cannot assume that whenever we want to fast as Jesus did, God's miraculous sustenance is automatically granted to us (as God apparently gave to Moses). If we believe in the harmony of truth between faith and science, we can be assured that 40-day fasting without water is medically unsafe and indeed is a sure recipe for death (a South African pastor tried it and died at day 30, see Extreme fasting: How trying to do what Jesus did could literally kill you).

Instead, we should interpret Matt 4:2 as an allusion to "Israel's 'forty years' of privation and testing" not "as a model for his followers' practice". From R.T. France's 2007 NICNT commentary on Matthew on Matt 4:2:

“Forty days” is used in the Bible as an idiomatic expression for a significant but limited period (e.g. Gen 7:4; Num 13:25; 1 Sam 17:16; Jonah 3:4; Acts 1:3), but Matthew speaks more specifically of “forty days and forty nights,” and in view of his interest elsewhere in Moses and Elijah it is possible that he intends that phrase to recall more specifically either the period spent without food by Moses on Mount Sinai (Exod 24:18; 34:28; Deut 9:9 etc.) or by Elijah in the wilderness (1 Kgs 19:8); the latter would be a particularly suggestive allusion in that Elijah’s hunger during that period was miraculously solved by food provided by an angel (cf. v. 11). But in view of the clear background to this story in the pentateuchal narratives of Israel’s wilderness experience (see above) Jesus’ “forty days and forty nights” more obviously serve as a reminder of Israel’s “forty years” of privation and testing. Matthew gives us no means of knowing whether Jesus’ fast for this period was deliberately self-imposed or simply the result of lack of available food in the wilderness (where, however, both John the Baptist and Bannus seem to have found adequate resources; see on 3:4). Jesus’ fasting is not presented as a model for his followers’ practice; this is an experience unique to the Son of God at the outset of his mission.

So, how did Jesus fast in Matt 4:1-11?

If we use the hermeneutical rule of following the plain sense of Scripture, it appears that "Jesus did, indeed, fast for 40 continuous days" but since all 3 Gospel passages only say that Jesus became hungry and if we keep in mind the likely Jewish custom of Jesus's time, we can conclude that Jesus drank water during his 40-day fast. From the 2018 Verse by Verse Ministry International web article Was Jesus' time in the desert literal?:

From these careful observations we learn that Jesus fasted only from food, not from food and water. He was evidently drinking water throughout the 40 days. This is typical of Jewish fasting customs of the day. Jews will fast either from food alone or from food and drink. Food fasts may last up to forty days, while food and drink fasts last no more than seven days.

In both cases, a body can survive with no serious risks. In fact, 40-day food fasts are still practiced today among both Jews and Christians. Christians who have participated in 40-day fasts report that hunger pangs cease after 2-3 days and don't return again until around the 40th day, just as the Gospels report in Jesus’ case.