Our expert says:
Hi there walker
Your failure to achieve could be related to a number of things, though the most likely by far is diet. Exercise without diet is relatively meaningless, and from your description, your exercise is good - you seem to walk often enough, probably fast enough and on average, long enough, and so the only thing that I can think of is that perhaps your diet is not very good. It also depends on your current weight, body composition, which I don't know, but I suspect that diet will make a difference. For this, my advice is that you see a dietician for personalized help.
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