I don't really track my bf. but I think it did go up though got a little bloat. I my biceps were 15 before and they went up half an inch. I didn't do any other measurements I'm always busy with stuff so when I get home I got to Get my rest. And yes I had a case of gyno but caught it early and ran letro for 4 weeks. I ran the letro and in two weeks my nipples weren't puffy and got in under control. That letro though kills your erections I couldn't fuk even if I popped a Molly. I would recommend keeping it at 20mg a day after that you start getting the sides.