A bodybuilding grandma has smashed body stereotypes and gained incredible shape by sticking to a gruelling regime for decades.

Robin Hills, 48, from Ontario, Canada, has been bodybuilding since joining a gym in 1989. Since then, she has had two children and three grandchildren, yet still continues to make incredible gains and doesn't look like she's slowing down anytime soon. 

In 1993, weighing 9st 9lbs, she took part in her first bodybuilding competition, ending up in an impressive second place.

Even as a mum throughout her two pregnancies, Robin made sure to carry on training as hard as she could, and she now weighs 14st and has massive 17-inch biceps.

Both of her children grew up to be corrections officers, and so now Robin has plenty of time to train six-days a week while preparing for her two shows a year, and five times a week during her off-season. 

Mum to Katey, 23, and Courtney, 21, and grandma to three-year-old Abel, two-year-old Avianna and one-year-old Wynter, Robin explains, as per LadBible: "I was tall and skinny but very athletic. I was an average student, but I grew up playing basketball, volleyball, running track, baseball.

"After high school I didn't want to get out of shape so joined a gym and fell into bodybuilding and was addicted right away.

"Before this I was quiet, shy and a bit awkward with normal insecurities kids have.

"Now I love how I look and feel. I am very confident and enjoy life and still love to laugh. I get a mixed variety of reactions but mostly positive. I rarely get negative comments on my social media or in person.

"I don't think it's harder to achieve these results after having children, but it also depends on everyone's hormonal profile, metabolism and lifestyles.

"Yes, I do [hope to be an inspiration to mums and grans] and I also hope I inspire younger girls to do what they love and not pay attention to people's opinions. I hope I inspire everyone to love themselves and do what makes them happy."

Robin says that she doesn't track her calories as part of her training regime, but she does eat five meals a day.

On an average day, Robin wakes up at 6am and does 20 minutes of cardio before eating her first meal - a cup of egg whites, two whole eggs and some spinach. 

A while later she has her second meal which usually consists of five ounces of chicken, cucumbers, sugar-free ketchup and spices, before she heads to the gym where she does cardio and weight-training, and then spends 10 minutes in the sauna. 

After the gym, Robin feasts on five ounces of steak and three ounces of yams, before taking her dog Ping for a walk. Her fourth meal consists of five ounces of fish or chicken with cucumbers, and rice if she's off-season, before then taking time to spend with her family. 

Her final meal of the day is one cup of egg whites, one egg, spinach and avocado. After that, she spends 20 minutes on the treadmill before finally going to bed.

Even with her exhausting regime, Robin says she always makes time for her family: "My girls are on their own now as they are 21 and 23 with their own families.

"But when they were younger, I would go to the gym when they were in school or bed and prep my meals before they woke up.

"I didn't want to take any time from them so prioritised and kept a tight schedule that didn't interfere with our time.

"When my girls were young, they came to every show with me and would scream 'mom!' They would help with my hair, come to the gym with me, and encourage me to keep going.

"I had a rough time building my legs as I am about 5ft 9in so I had to change my mental approach to training them. Meaning, I needed to grow some balls and train harder.

"It has taught me patience as it takes time to achieve your goals, and to be persistent when trying to achieve your goals. Lastly it has taught me to believe in myself.

"To anyone who wants to give it a go, seek out help, read and educate yourself, and most importantly be consistent."