Pineapple and lemons are some of the best substances for your body. Drink pineapple juice or lemonade, ASSUMING they are just that. Most storebought brands of such have way too much sugar concentrates and whatnot. Grapes are okay, and mangoes aren't really THAT great for you, it's just better for you than meat and etcetera, particularly if your diet is varied.
Water doesn't particularly do *much* for you, but it DOES clear your body of toxins and whatnot (I think Ven touched on this?). If there are toxins and other stuff that could increase your weight, water would sorta help. Ingesting large amounts of water will actually inflate you, but iirc, it'd make losing that weight better. So exercise and whatnot + water helps a fair bit.
I'm 5'7 or 5'8 and around 142-145 lbs, meaning it's not as bad as it could be - close to a good BMI and whatnot. However, I do see/feel the pudge and I could use more muscles, so getting leaner is pretty much all I'dlike, probably around 135 lbs, which I'm aiming for by June 21 or so (days before my dorms/college). If nothing else it'd make me feel better around being in the beaches/pools and with my shirts/pants off.
But so I've actually been exercising a fair bit. Calisthenics, some stretching, jogging till sweat, and leg lifts. My diet's been... very much meh, the FitDay things says I'm burning more calories than I'm consuming, which doesn't really make sense since my diet's been pretty stable and I'm always hungry/eats lots, so I've been restricting myself to trying to eat more moderately + fruits. Drinking craptons of lemonade. I think I've lost 2 pounds, but imo that's just self delusion and variation in the weighing thing. The fact I've actually been exercising consistently is the only real change, which is funny how productive I get as school ends.