I'm a pretty experienced runner so I might be able to answer your question. I'm 180cm and have run three marathons, winning my age group in one small one, and have run one 260 mi ultra marathon relay.
The most important point is that running will not reduce body fat unless your diet is at a deficit. You cannot outrun a bad diet and I've known overweight marathoners. I've even gained weight once while running over ten miles every day. So, it all revolves around the kitchen.
You also can't spot reduce the abdomen. All you can do is keep eating at a calorie deficit until your body gets around to using up the fat around the waist. Unfortunately, that usually happens last.
Despite the bro-science in the gym, running will not burn your muscle. There was a study done on some people in an extreme ultra race and even after several months running up to 60 miles per day they lost no muscle in their legs and very little in the upper body.
People will recommend HIIT, high intensity intervals, because of the belief that will give you some massive afterburn. That also is a myth. You do get a negligible post exercise energy expenditure but it's no more than you could have burned by running around three minutes longer at a normal pace. That said, HIIT is good exercise if you like it.
In my opinion, if you want to use running for weight loss, which I think is a great idea, then the best way is to increase your aerobic fitness so that you can run at least an hour comfortably at a steady state pace. Once you get to that level of fitness losing or maintaining weight becomes very easy as you are able to burn a whole lot of calories at will every day without a lot of stress to your body. As a bonus you also get pretty healthy.
What I'm doing right now for the running part is three 40 minute runs, one 60 minute run, and one 90 minute run per week. In addition to that I walk a lot and do body weight exercises and yoga several times a week. I also track my diet religiously to ensure a deficit.
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