People can be assholes.
It's illegal to kill them for it.

Pity.

You're fine. Their opinions mean nothing.

"fitness trainer" explains it all. He was trying to drum up business, not realizing that insults don't attract more customers.You might have informed him that women might find him more interesting to talk to , if he didn't gargle with cow manure.

I suppose a hearty "Fuck you and the horse you rode in on" would be considered impolite?

Yeah, that's something I would do... so, impolite.... but did you give him a glare to that effect?

Look him up and down, kinda laugh and smile and say, "And I should value YOUR opinion WHY?" Then walk off doing the princess wave, lol. Works on both sexes, and many topics btw. Also, if you see him again start chuckling while envisioning a banner of TP coming from his pants. Do that part anyway!

Smile and wink and say... "You know, I can lose weight and be ideal... But you will STILL be an asshole!"

Now, that’s just rude! Poor boundaries plus a cultural heritage of objectifying women in ways seldom directed at men.

Beauty is only skin deep but ugly is to the bone. Sounds like he is bone ugly with an attitude like that.

It’s sad that women are judged according to their appearance. It’s sad that anyone is judged according to their appearance. What matters is your character, health and intellect.
I think you should ignore whatever anyone says about you, assess yourself by your standards and own the result. It’s not my opinion about you that matters, it’s yours.
My daughter has similar issues and I repeatedly tell her to stop worrying about what other people think about her and worry about what she thinks about herself.
Some men won’t like you for being overweight. Some won’t care. Some will find it attractive. Find someone who will like you for who you are and ignore the rest. Trust me, they’ll look after themselves.

Pissed off generally, and on bad days less secure in myself, but unfortunately it keeps on happening!

( I also have a friend who’s a bit bigger than the average who gets comments about it, (especially from men).
She’s gorgeous and a great person, if they cannot see that they don’t deserve her.)

Good grief!

Your body is exclusively your own property, and it would never occur to me to volunteer an opinion about it. If I am asked by anybody about their own body, I will provide an opinion.

It can also come up as an incidental in conversation. One particularly large breasted women and I were talking about body size and health related issues, when I asked "How do you avoid backache?". Her response was "By having a good posture.". In terms of her own body image, it was essentially a non-event.

I would feel insulted. Since a child, I have been criticized for my body size, for being "too skinny."

"I want a woman who is in great shape like you, but with bigger breasts and hips," one guy said. "Ouch," I replied. "That was mean. I want a man who is kind."

Mean words sting. Why do we always remember the cruel things people say?

You should of told him that he'd be a lot hotter if he learned when to speak and when to keep the opinions to himself. Looks come and go, thinking and common sense are lasting.

That’s the kind of BS that you ignore.
You are beautiful. Ignore the mental chatter.

I am 5'7" and probably close to 165lbs right now. That would be insulting me as well. Heck, sure we know we could lose weight and get tone a little more, but your weight is not the worse scenario we could be at.
What really hurt you and you have been dealing with your whole life is what your grandma did to you. If that had not happened, I bet this snob fit idiot would not matter to you.
Sorry you had to deal with his idiotice without consent. Sometimes people do things that hurt us and they don't even notice. Opinions and comments can stab you emotionally sometimes.
Be happy with yourself the way you are, only get bothered if it comes from you and then work on a new plan on what needs to be changed.
I would love to be more active, but I have not dedicated time nor mind to make this change. It frustrates me, however there are other things that I need to focus. It could be an excuse, but if you are happy, that is what matters.

You're always going to be too fat or too skinny, too tall or too short, too smart or too naive, too athletic or too sedentary, etc., etc., for judgmental people.

When I feel someone is judging me to be too (anything) I just reply that I have a mirror, I know what I look like, and I'm happy with myself at this time in my life.

(I should follow that up with, if you have a mirror and are happy with yourself, then that's all that matters, that we like ourselves as we are.)

If I decide to change sometime, it will be for myself, not for someone else, especially someone who judges a person by their outsides instead of their insides.

Oh, good grief, what a tool! I'm afraid my words would have scorched his epidermis before I was through with him. Shallow men are the biggest turn-off.

Tell him to fuck off you are perfect as you are

I used to get unsolicited advice when I was skinny by everyone. All along the lines of eating more. So whenever I went out with friends, I would eat the most to SHOW them I do eat, even alot, but my metabolism at the time was fast. Now that health issues caused weight gain, I get stupid comments from family members. But they are not satisfied any way; when I was too slim or now more rounded, complaints came. You just cannot satisfy some people!

I would feel annoyed and make them feel stupid for their comment because I am petty heh.
Someone hits me, I hit back. Maybe one day I will walk away without saying anything.
I am sure you handled it more maturely than I would have. Fck that jerk face. -_-

I would be annoyed at the unsolicited advice, whether it be about my body or anything else. But the body thing -I grew up in a time and area where apparently it was common for people to shame women for their bodies. I was not overweight when I was young, but I sure was not happy with my body and was felt that it (and I) were never going to be good enough. Such a waste.

‘Unsolicited’ is the key word!
I get it; my mother was the narcissist. ‘You going out in THAT?’ ‘Why not wear make up?’ ‘Can’t you do something with your hair?’ And the classic, comparing me to my Golden Child brothers: ‘you know, the boys would wear more formal/casual/blah blah blah’ yeah, fuck you, mom.
That’s my answer. Fuck you, you don’t HAVE to look at me. And BTW: who the fuck asked you?
Ok, I do get hostile...because I’m sick of that kind of ‘suggestion’.

A British phrase comes to mind. Tell them to piss off! A guy at work tells me to shave off my ridiculous beard. I agree to as soon as he knocks the ugly off his face.

Unfortunately "personal trainers" or 'fitness snobs" are there for that, to give us advice on our physique, that's their one and only task. I they shut up it would be pointless to have them. I used to work with a girl that was a personal trainer as a second job and she made good money on that! Now, if anybody else gives advice without being asked, at work, at a party, at a mall or in the street without being asked, they are a bunch of impertinent unpolite jerks. Unfortunately at home, in the family, those boundaries are generally less evident. When I was 20 I started growing a beard and my aunt told me I looked "awful" and I replied: I'm not growing it for you"...I am sorry for your bad experiences!

I am so sad that you were insulted about your appearance. Glad that you have more in your personality than just your ‘looks!’ Stay strong and try to keep weight down, not because of looks but it is better for our health. I have never been extra heavy, but I have always made it my business to adjust my eating habits, simply because I wanted to have good health. In old age looks mean little, but good health is everything!

Live your best life and never allow anyone to define who you are by your looks...you are a complete person who operates out of your specific body. Care for it as you would any vehicle that transports you through life as it does in this case!

This is the appropriate answer.

I wouldn't like it one little bit. The guy is a absolute ass.