First let me say, the (additional information) hadn't posted yet when I replied.
If this is how you feel, then there is nothing YOU can do to correct this. You already love her and that's great. But if she doesn't know how you feel deep down about it, then she can't correct it. To some people just as yourself, they will love someone no matter what they look like. But when it comes to be intimate, there is an image that plays on being excited as well. But it would only be fair to talk to her. You can do this without making her feel bad. Perhaps she doesn't realize how this is "really" effecting you. I'm sure she may even feel "bad" about it herself, which may make her feel worse.
I would sit down and talk to her. Do this at a time of day when sex or anything intimate is not going to happen. (it's nothing to bring up in bed or prior to sex)
I don't know your wife, but one option may be to sit down and write a letter, give her the letter, explain the things you do love about her etc, and then mention how you feel about this. By writing a letter allows her to read your words vs if you were to sit down and talk to her, she could interrupt and you may not get all what you want to say out to her.
Then just tell her you are there to work on this. Is it possible you need to lose a few pounds? Perhaps you both can eat healthier and exercise together. Losing some weight is great when you have a buddy to do things with.
You also say she lost 100 pounds a year ago, perhaps part of this is excess skin too, which she may want to have a tummy tuck if she loses some more, etc.
So there are some options here... If she loves you.. like you love her.. then she needs to know. But it just needs to be done in a non-judge-mental way.. which is a sensitive approach.
Hope this helps, and gives you some thoughts to ponder as well. If you need anything else please feel free to ask. If you found this helpful don’t forget to click the *Accept* button.