The presenter – who has been candid about her weight struggles – opened up during a phone in on the ITV show as she urged a caller to get out and live her life despite body image issues.
She appeared to get emotional as she told the viewer: “You've got to enjoy your life as before you know it we're not here.”
“I’ve got insecurities as well babes," she said.
"I feel like you feel sometimes as well. It's not all perfect what you see on the TV.
“Like I said, I don't like taking my jackets off... I go to the gym sometimes and I don’t want to go to the gym and people are staring at me. But everyone is going to stare and that’s all that happens.”
When the caller said she hadn’t been to the beach in years, Hamond offered to go with her.
People watching the programme were touched by the presenter’s words to the viewer.
“Honestly just love her!” one tweeted. “Heart of gold.”
Another said the TV star "shows true empathy".
“Such wise heartfelt words from @AlisonHammond,” tweeted someone else.
“Sometimes easier said than done but yes go live and enjoy your life, time is precious.”
“@AlisonHammond you’re one of the most beautiful women on TV - inside and out,” remarked somebody else.
Last year Hammond said on This Morning that she had suffered with obesity all of her life and that the NHS needed to see it more as a disease.
Breaking down in tears, she cried: “Sorry, because I just think people look down on people just because they are so big and they can’t actually help it when you’ve actually got a disease.
“In obesity your regulation system is out of whack…when you are in it you want to eat and you want all the bad things and you know you don’t look great.”
Watch: 'I still love Phillip Schofield': Alison Hammond in tears on This Morning