I have just discovered a very nice way to reduce post-prandial highs: 2 oz of Elderberry Concentrate taken daily. My post prandial highs have come down by about 25% with this dosage. Elderberry, along with blueberries and bilberries, contain myrtillin, the substance responsible for the blood sugar lowering effect.
The proanthrocyanins in these fruits also help with night vision, capillary strength, and immune system functions. Nice package.
You can buy Elderberry Concentrate from either Luckyvitamin.com or Vitacost.com at about $15 for a 16 ounce bottle.
As with all supplements that lower blood sugar, it is always FOOD FIRST, then supplements. The elderberry helps, but not as much as balancing protein and carbs. Learn to hit your target numbers, in the panel on the left labeled "DIET TO NORMALIZE BLOOD SUGAR" and then elderberry, and other supplements can come in and finish the job.