Recently I decided to get "back in shape". I'm 5-foot-8, and this meant going from ~170lbs to ~140lbs. I actually dropped it rather easily (just walking and calorie counting), and I've maintained that weight since (6 months so far).
The kicker? I cut my insulin usage by 40%. However that wasn't just because I was no longer eating excess calories, but tracked my macros to see what I was eating. General guidelines are 50/30/20 for calories from carbs/fat/protein. Before I tracked it, I was apparently 60/25/15 which was VERY surprising to me, as I didn't think I was eating that many carbs. Now I'm 45/30/25, and slowly edging towards 43/30/27.
Granted, high protein diets aren't cheap, so the costs largely balance out. However tracking what you eat may reveal that you're getting far more of your calories from carbohydrates than you think.
Through work currently we can use a web site to help find your cheapest place for prescriptions. One bottle of Novolin R like you said about is about $25 from Walmart for cash price. One bottle of the same prescription with a discount coupon is $138 dollars.
That's still cheaper than Novolog/Humalog, but how in the world is it more expensive to buy insulin with a prescription and insurance than without? When I pay a 20% co-pay am I essentially paying my insurance company the extra money?
Of course it makes no sense that the fiddly details of how you buy medicine matter to the tune of 5x. I guess part of the problem is that an awful lot of people are insulated from the costs of their medical care.
But if you eat no carbohydrates, would you really need much insulin?
I don't understand what the fuss is about type 2. The resistance is developed because there is too much insulin in the blood all the time, and the solution is to take even more insulin?! It seems a no brainer that the solution should be to cut sugar out of the blood stream at all costs and reverse the insulin resistance...
As far as cutting sugar out of your blood - you can't. Your body tries to maintain 80-110 mg/dL of sugar in your blood. You NEED sugar. It's energy. In fact, sugar is the ONLY energy source your brain can use. The problem is when you're a diabetic, your body's cells can't take that sugar out of the blood to use it for energy. That's when you try to minimize your sugar intake, because if you don't, you can do irreversible damage to your nerves and vasculature.
Most high energy usage organs inc the brain are quite happy burning ketone bodies - made from fat, in fact the heart prefers them. A few brain and organ functions do require some glucose, but these can be made from protein, better though to eat some healthy carbs such as spinach, for this. Most Type 2 diabetes sufferers can be cured by a strict low carb high fat diet. Healthiest fats are saturated grass fed cow's butter and lard, coconut oil or mono saturated olive oil - contrary to most people's belief. Unsaturated vegetable oils are very dangerous they are unstable and easily become poisonous, margarine is evil.
Have you tried something like that?
For context, I've been a Type 1 diabetic since around '85 and, as I get older, I'm becoming more insulin resistant (Type 2) also. While I've been able to keep my blood sugar mostly under control, I test my blood 4-10 times a day and sometimes need to take insulin 5+ times in a single day (sometimes it just doesn't "work" and I need to take more in smaller amounts to bring my blood sugar down. I can't just retake the original amount in case the first shot suddenly "kicks in").
I'm guessing a no carb diet could also imply high protein, to replace the carbohydrate calories. Too much protein (>20% of calories) is bad for Type I diabetics leading to a state known as microalbuminuria. In layman's terms: increased stress on your kidneys. More on this at: http://journal.diabetes.org/diabetesspectrum/00v13n3/pg132.h...
In summary, almost every (if not every) diabetes publication & specialist advises heavily against low/no carb diets, instead recommending a balanced diet.
Think of it like keeping milk stocked in your fridge. Even if you spread it out to last more than a month, the remaining half will go bad before you got to it.
So although changing diet and increasing physical activity may reduce insulin requirements in both type 2 and type 1 (as several people have anecdotally shared here), you can see how it doesn't avoid buying insulin every month.
The cost of insulin over the last few years and as recently as the last few months has skyrocketed. Not just the fancy fast acting insulin, but even the regular stuff that you can buy over the counter without a prescription(R and NPH) has nearly quadrupled in the last 12 years. It's not an increase in manufacturing costs. It's price fixing by the two major players(Lilly and Novo).
You'd think that with Lilly significantly raising their prices a few months ago, that Novo Nordisk could make a killing, but no, they both did it at the same time. Funny how that worked out.