Which sachet Pro/ prebiotic is good for my 2.5 year old. He is having very bad digestion issue and our family doctor said we can give him the probiotic that comes in sachet or Enterogermina. But enterogermina full vile dose is too much. Pls suggest any other good powder / sachet. He is having very bad digestion , very bad constipation I.e stool is very hard and painful to pass and hence he doesn't eat anything Prefers milk which deteriorate his health. He became anemic and lost weight.