Hi Doctor, Recently I Was Diagnosed With GDM At 28

Hi Doctor, recently i was diagnosed with GDM at 28 weeks . I have been monitoring my numbers and it is well controlled with diet and exercise. My fasting sugar is always between 80-90 and 1 hour post meal is below 120 most of the times. I have heard of so many benefits of coconut water and would like to have maybe 1/2 a cup or so everyday. Is it recommended with GDM?