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Underweight

Question, ladies: my BMI says I'm underweight. Need to gain wt. or okay?
Meet Jax, my rescue senegal! I'm worried about him being underweight, so to the vet
[IFF] My "BMI 17" body. I want nobody to ever tell me again I'm underweight.
(50/50) Picture of Patrick Star | Underweight woman (NSFW)
5ft11 136pounds underweight & shy
M underweight/undersexed
always was very underweight but slowly filling out (125 lbs -> 143 lbs)
[26M] I used to be really underweight. What do you think now?
Severely underweight child in Indian state of Gujarat
[26M] please give me two ratings: one of me as I am and another one that you think
5ft 10" 151 lbs. It's been a long challenge to gain to a normal weight because
An Ounce of street weed. No larf, no shake, no leaf. No bait and switch, no underweight
[M 24] Not underweight anymore so that's cool (+15lbs so far)
25m/5'6"/120ish still a bit underweight but going to the gym has helped
25/122 lbs been underweight but have started put some on.
27 M 81kg. Gained 20kg in 14 months, no longer underweight
[GMBF] (M/20/5'8/113 lbs) I know I'm underweight, just started gaining and would
[F32][First Post] I'm single mom of two and was severely underweight several years
M/19/5'9 [190-145-160] (1 year) I was overweight and then fasted too much, and became
Hope you like my first picture! I gained 30 pounds, was very underweight, now I feel
M/23/5'8" [120lbs > 140lbs = 20lbs] From Underweight to somewhat normal
(M) Underweight and shy
I've been near underweight all my life. I'm curious if anyone finds this physique
Used to be extremely underweight, and now im growing my belly! Does it looks good
M19, 130lbs, 5'10 Underweight with a small penis. I need to workout I hate my body.
I know it probably looks like nothing but I went from 75 lb to 108 lb. I've been