After gastric bypass surgery, the high protein diet causes a chemical imbalance in the body. As your body tries to adjust, it enters the state of ketosis. This is not dangerous, but a sign that you are burning fat. Ketosis is a normal metabolic process, something your body does to keep working. When it doesn’t have enough carbohydrates from food for your cells to burn for energy, it burns fat instead. As part of this process, it makes ketones.
With ketosis comes a few minor annoyances like bad breath and awful underarm odor.
I have been using vinegar under my arms since the surgery. I filled a tiny hotel shampoo bottle with vinegar and kept it in my purse. If the smell got worse during the day, I applied some more with a tissue. I even used the same tissue for a quick dab on my privates to boost-charge the pH-balance. After a while, it no longer worked.
I just switched to lemon and it’s working much better. I don’t use lemon juice. Buy a fresh lemon and cut it in half. Every morning, use the halves to apply like a roll on. Keep slicing off a bit until you run out of lemon.