Real sugar is a natural product. It is grown and harvested just like other natural products and that is why I prefer it to all sugar substitutes. Although I do use real sugar very sparingly in whatever I eat and drink.
But as I said before I certainly see the need for sugar substitutes of some kind for those who suffer from diabetes.
Stevia IS that substitute. It does not cause insulin to peak and is sweet. It is from the leaves of a tree. It is a substitute without being artificial. It is perfect for diabetes.