Gigi Hadid has hit out at people who've criticised her for being too skinny.
In a series of tweets she responded to claims she's got thinner - saying it's due to treatment for Hashimoto's thyroiditis.
The disease, which she's spoken about before, can lead to weigh gain, tiredness and dry skin.
The model said she would "not further explain" the way her body looks and that "I may be 'too skinny' for U...but I feel healthier."
She began by suggesting people who once called her too fat were now shaming her for losing weight.
For those of you so determined to come up w why my body has changed over the years, you may not know that when I started @ 17 I was not yet diagnosed w/Hashimoto’s disease; those of u who called me “too big for the industry” were seeing inflammation & water retention due to that.— Gigi Hadid (@GiGiHadid) February 11, 2018
The NHS says Hashimoto's thryroiditis can "take months or years" to be diagnosed and is "caused by the immune system attacking the thyroid gland, making it swell and become damaged."
Over the last few years I’ve been properly medicated to help symptoms including those, as well as extreme fatigue, metabolism issues, body’s ability to retain heat, etc ... I was also part of a holistic medical trial that helped my thyroid levels balance out.— Gigi Hadid (@GiGiHadid) February 11, 2018
Gigi said the changes to her body are down to her now being "properly medicated" to help symptoms which include "extreme fatigue and metabolism issues".
And she insisted she wasn't eating any less than she used to, it was that her "body just handles it differently now".
Although stress & excessive travel can also affect the body, I have always eaten the same, my body just handles it differently now that my health is better. I may be “too skinny” for u, honestly this skinny isn’t what I want to be, but I feel healthier internally and (cont)— Gigi Hadid (@GiGiHadid) February 11, 2018
(cont) am still learning and growing with my body everyday, as everyone is.— Gigi Hadid (@GiGiHadid) February 11, 2018
The 22-year-old admitted that "this skinny isn't what I want to be" but said she feels much healthier, before asking others not to judge her.
I will not further explain the way my body looks, just as anyone, with a body type that doesnt suit ur “beauty” expectation, shouldnt have to. Not to judge others, but drugs are not my thing, stop putting me in that box just because u dont understand the way my body has matured.— Gigi Hadid (@GiGiHadid) February 11, 2018
"I will not further explain the way my body looks, just as anyone, with a body type that doesn't suit ur 'beauty' expectation, shouldn't have to," she said.
Gigi's spoken about body shaming a number of times.
She famously put a long statement on Instagram in 2015 in response to being trolled for the way she looked.
"Don't take your anger out on me," she said.
"Yes I have boobs, I have abs, I have a butt, I have thighs, but I'm not asking for special treatment....Your mean comments don't make me want to change my body."