stevia leaf extract and stevia Reb-A extract

1,Advantages of stevia extract and stevia Reb-A extract.
  1) It has low calorie and highly nutritious.
  2) It has anti-oxidation effect and the best substitute of sugar, so it is a healthy dietary supplement.It cannot only be used in mass food industry such as carbonated drinks, sugar free gum and preserved foods, but also can also be used in daily cooking and baking in the family kitchen. 
  4) It is the best substitute of sugar and it will not elevate the level of blood sugar. 
  5) It is gentle on teeth and not easy to bring dental decay.
  6) It is rich in fiber and don't contain fats. 

2, Difference of stevia extract and stevia Reb-A extract:
  1) The taste of stevia Reb-A is very close to sugar. It has no bitter taste as normal stevia leaf extract.  
  2) Stevia Reb-A is several times sweeter than stevia extract.
  3) The cost of stevia Reb-A is around 10% to 30% higher than stevia extract.