It is wonderful that you go to the appointments with your husband, and help to support and encourage him. The journey through learning how to manage one's T2 diabetes is very lonely otherwise
I want to encourage you to focus on the amount of carbs per day. From what the Science says, (I adhere to evidence-based research and not what any doctor or organization or registered dietician says unless they, too, have excellent, credible research to back them up), counting carbs (less than 40 grams per day), eating plentiful healthy fat, MODERATE protein (from lean meat, soybeans, nuts, nut butters without sugar), plentiful fiber, no root veggies, limited fruit (apples, pears, berries-- 1/2 cup servings per day), NO sugar or sugar substitutes (because they nearly always have sneaky sugars), and lots of veggies-- especially the leafy green ones-- is the way to go to lose weight, as someone with T2 Diabetes. Insulin causes the body to store fat. Since we are insulin resistant, our pancreas makes an overabundance of insulin because our bodies have been fooled into thinking we do not have enough. (Instead, the cells just cannot use the insulin to unlock their walls to allow us to use glucose in the blood for energy). And the beta cells in our pancreas-- the cells that produce insulin-- get worn out and then begin to degenerate and eventually die. IF we don't trigger insulin production (not eat), then our bodies eventually begin to break down the stored fat because there is less glucose available for use. (So intermittent fasting helps, too, as far as weight loss AND for both improving insulin sensitivity and decreasing insulin resistance)-- that's what the current Science says. I am hardly a medical expert. However, I have done significant review of the available research and the things I am writing are based on current research done with large populations, over years (not just a few weeks or months), in credible institutions, have been replicated numerous times, and have very good study designs to begin with. I have been utilizing this, myself, with very very good results. I have lost 35 pounds since mid-December. All of my numbers (a1c, cholesterol, triglycerides, resting blood glucose, weight) have gone down markedly. I am sharing because I hope that others will do the research themselves and consider adopting the same type of dietary regimen. Good luck!