Hello Roberto, and thank you for visiting MedHelp. I will answer your question as best I can, but I am more familiar with diabetes than hypoglyemia. I dug into this as much as I could and could not find anything on what to avoid. Everything I found suggested making sure you get all of the recommended vitamins and minerals. I hate to sound like your mother, but making sure to eat plenty of fruits and veggies is always a good idea.
If anyone has any specific information for Roberto, please feel free to jump in. Also, you might want to talk to your doctor about this. He may have some knowledge about this subject that I don't.
There does seem to be an increasing interest in vitamins & supplements. I'm not a physician ot a nutritionist, and I would recommend you talk with your doctor about your question. There are plenty of supplements lining supermarket shelves and it sure is difficult to figure out which ones can be a real benefit (to the consumer) and which ones simply add profits to the sellers' bottom line.
Since some of these products can be a benefit and some can interfere with medications or other conditions, it's very important to discuss with your doctor --who has the most information about you and also the particulars of your condition. Some docs are flatly against supplementation and they see it as simply a way to create "expensive urine." It might take some shopping around to find a knowledgeable doctor who shares your interest in supplementation.