Answer:
Be there for them. Not necessarily tell them "don't be suicidal" But more of telling them "if you ever need someone to talk, I'm here", Or even asking them about their life could get them to open up to you about why they are feeling suicidal, you could be the person they need to open up to.
Hope this helps!
The Institute of Medicine recommends 13 (3 liters) cups of water (and other beverages) each day for men and 9 (2.2 liters) cups of water (and other beverages) each day for women.
Depending on their body if their big then you probaly shouldnt make them a diet like models eat it will cause them to want to eat more and it will not help the whole point of the diet
if their middleish then you can give them salad but they drink somthing to make them feel good like a ensure or a smothie it makes you feel full or whatever and it still has the nutrition in like fruits and stuff