The 59-year-old TV presenter - who has just signed up to compete in the latest series of Strictly Come Dancing - has revealed she told her eldest child she was 10 years younger than she really was, only to be confronted by her after a schoolfriend Googled her.
Adams wrote for the Daily Mail: "Watching my little girl’s face fall into shock and confusion as I dropped into our chat what I thought was an insignificant, if not comic, confession — not to mention the resulting wave of shame and anger I rapidly felt with myself."
The Scottish journalist is mother to two daughters, 20-year-old Charly and 15-year-old Bonnie.
She revealed she confessed her true age to her daughter Charly when she was 10-years-old and Adams was approaching her 50th birthday.
Charly told her she had got into a row with a friends at school about her mother's age and accused her friend of lying.
Watch: The Strictly Come Dancing 2022 line-up so far
Adams said: "It breaks my heart to know now that such was her trust in me that she convinced herself the internet was wrong."
Adams said she had signed up to the BBC celebrity dance competition as a "later-life folly" and so felt no pressure to win, but only to enjoy herself.
She went on: "That makes the fact I lied to my own child about my age seem even more ridiculous now. I’ve always been the person stood at the edge of the dance floor, and it’s only being older that’s given me the confidence to think: ‘What the heck, I’ll give it a go!’ "
Adams admitted she had felt "ashamed of ageing" and was influenced by her own late mother, whose decision never to reveal her true age had been a running joke in their family.
But the Loose Women presenter declared that after years of lying about how old she was, she is now ready to embrace "pushing 60" as she prepares to take to the dancefloor on live national television.
Adams said: "I realise now that I owe it to my daughters’ generation — and to my own — to embrace growing older, to redefine what it means to age as a woman in the hope that they never feel they have to shy away from acknowledging how old they really are."