I have been diabetic for more than 5 years. I often feel tired, sometimes my legs are numb, especially, I can't sleep at night because of nocturia. I have used many diabetes products but they did not work. Luckily, a friend in Japan recommended me to use this Satochi effervescent tablet. Now after 3 months, my diabetes has improved markedly. I sleep better and my body is healthier than before. My glycemic index is at 6.3. Very good product! I will recommend it to my relatives