A man has gone viral on TikTok after announcing his plans to lose weight by only eating McDonald's for 100 days.
Kevin Maginnis, 56, decided back in February that he wasn't happy weighing 238 lbs (107.9kg) and figured that eating 'nothing but McDonald's' might be the best thing to help him start his weight-loss journey.
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Obviously, there are far better, more nutritious meals to opt for if you're trying to shed a few pounds, but Kevin's theory is that it's not about what you eat, but how much you eat.
He explained: "I know some of you are thinking that might be crazy, but I'm gonna eat nothing but McDonald's for the next 100 days.
"But instead of eating everything they give me, I'm going to go ahead and cut the meals in half just to prove to myself that it's not as much what you're eating, it's the quantity that we're eating that really jacks us up.
"So I'll order the meals, I'll eat half of what they give me, I'll opt for a bottle of water instead of the soda, and we'll keep track of it."
While McDonald's does offer healthier food options like salads, grilled chicken sandwiches, apple slices, and porridge, that's not the kind of food Kevin is going for.
So far, a typical meal consists of a McMuffin and hash brown for breakfast, followed by a burger of his choice with large fries and a dessert for both lunch and dinner - all half portions, of course.
Calling his challenge '1/2 Size Me', it appears Kevin is trying to do the complete opposite to Super Size Me's Morgan Spurlock, who gained 24.5lbs (11.1kg) by only eating McDonald's for 30 days.
After Morgan's experiment, he was also left with an increased cholesterol and body mass, and was struggling with sexual dysfunction, mood swings, depression, chest pains, exhaustion, and a fat build-up in his liver.
But by eating smaller portions of McDonald's for breakfast, lunch, and dinner - for 100 days rather than Morgan's 30 - Kevin is convinced that his body will react much better to the diet.
And so far, that seems to be the case.
By day ten, Kevin claimed he was down from 238lbs to 225.5lbs (102.2kg).
He told his followers: "I believe by reducing the amount of food I put in, my body is going to respond well to that, burn off the excess fat, my cholesterol, my triglycerides, I believe all of that is going to improve."
As well as his weight loss, Kevin has been sharing his blood work.
But, after reading through the numbers, some followers are convinced that Kevin's McDonald's diet will only make things worse.
"If this was my blood results I wouldn't come within 100 miles of McDonald's!!" commented one concerned viewer.
"Physican here…. Not good my man! You need to follow up with your doc!" wrote a second.
Other viewers are worried that, while Kevin might be able to lose some weight on his diet, his food choices could seriously affect his cholesterol levels.
But Kevin takes all of the comments, good and bad, with a pinch of salt - and a half-portion of fries - and is confident he'll prove himself right.
Things are looking good by day ten but, as the weeks go on, will his winning streak continue? We'll just have to wait and see.