Vitamin C improves insulin sensitivity

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itamin C and insulin
As the years pass, our cells become less sensitive to the hormone insulin. Thus, they take less sugar from our blood and thus the blood sugar slowly creeps to high. That's not a good thing. If it gets out of hand, you develop diabetes type 2. But even if it does not get out of hand, is a subtly elevated blood sugar undesirable. One of the characteristics of healthy centenarians is a relatively low blood sugar, and a high insulin sensitivity.

There have long been indications that the increase of the vitamin C intake has a beneficial effect on insulin sensitivity. An Australian study confirms this effect. For the study swallowed patients with type 2 diabetes two times per day 500 mg of vitamin C for four months, while another group twice a day were given a dummy pill (placebo). In the placebo takers changed nothing, while the vitamin takers improved insulin sensitivity of the muscles. There was also the swallowers less of the typical oxidative stress in muscle and insulin production was disrupted.

The researchers concluded: "Our findings mean that vitamin C supplementation a potentially cheap, easy and effective adjunct therapy is in the treatment of insulin resistance in people with type 2 diabetes"
Glenn to Wadley, one of the researchers, the question of whether C could also be effective in healthy people with only a slightly increased resistance to insulin.
Wadley: "Maybe, but the only way to find out is to test it in people in a study. Now we first set up a follow-up study with a larger group of subjects with diabetes type 2. We will also look at the long-term effect of vitamin C on blood sugar levels and the effect of C on blood sugar immediately after meals. "
Why You Need the subjects twice 500 mg of vitamin C make swallowing and not once a 1000 mg tablet?
Wadley: "We have chosen twice daily 500 mg because we believe that the vitamin C content in the blood remains elevated longer. This approach is based on previous research which revealed an effect on insulin sensitivity. "
Would a higher dose, for example, three times a day a tablet with 1000 mg of vitamin C, even better effects have?
"No, we have no reason to believe that a higher dose would be more effective, although previous studies have demonstrated that a dose lower than 1 g per day has no effect."