Surely it’d be better to take it 10-20 minutes before your last meal as this way it’ll help to blunt the insulin induced by it?
If taken 1-2 hours after your last meal then it’ll help to keep your fasted insulin level overnight down really well but it won’t blunt the insulin response to your last meal. Therefore if you eat 1-2 hours before bed and are done digesting approximately when you go to bed then insulin will be released when you go to bed and will be in circulation during your first two hours of sleep.
I’m pretty sure that taking a GDA reduces blood sugar levels but wouldn’t reduce the amount of insulin already in circulation, and so, if you take it approximately when you go to bed then it won’t do anything about the insulin already in circulation.
Like that’s why the instructions on GDAs usually advise you to take them before meals and not when you’re done digesting it
just trying to better educate myself
I think you have a slight misunderstanding regarding the use and mode of action for GDA's. The reason to use them is not to blunt insulin release from a meal. It is to make you more sensitive to the insulin that has been, or will be released during the active halflife of the product. Honestly 10-20 minutes before a meal is not optimal as most gda's need 30-ish minutes to get into the blood stream and take effect on the insulin receptors or GLUT-4 trans-locators.
As a matter of fact, when using to increase anabolism you want a serious insulin spike associated with the GDA induced increase in insulin sensitivity so you can get as many nutrients as possible into the muscles.
Yes becoming more insulin sensitive will cause you to produce less insulin, and this is noticeable in dietary changes. So you might be putting those two piece of information together to come up with your hypothesis. However for the most part the improvement in insulin sensitivity from a GDA is transient. Meaning it will not have much carry over to normal life once the GDA is out of your system. Now prolonged use might help due to lower insulin levels during the GDA use allowing the cells to recover from the chronically high insulin levels you might have had before. However this will fade shortly thereafter as the benefits of the GDA are not keeping sensitivity super-physiologically enhanced so insulin levels will have to adjust upwards to do the same job it was with the GDA previously.
The only reason to take a GDA right before bed after carbohydrates have digested is to try and lower blood sugar overnight to burn more fat while fasting and GH is high. As a result you will wake up a bit tighter, since the blood sugar and any undigested carbohydrates tricking into the bloodstream those first 3-4 hours of sleep will be pulled into the muscle by the minimal insulin still being released, and GDA increasing sensitivity to it.