Haritaki or Chebulic myrobalan is one of the most important herbs in Ayurveda. It is said to be as gentle to the stomach, as a mother is to her child. It has qualities to pacify all 3 Dosha, therefore its consumption in different combinations is recommended in different seasons.
For the first timer, dosage of Harad (common Hindi name for Haritaki) in each combination should start with ½ tsp and taken to one tsp, according to the comfort of consumer. Test intake of Harad from ½ tsp to 1 tsp for the first week. Take ½ tsp for first 4 days then increase to 1leveled tsp for next 3 days.
When you are comfortable with 1 tsp of Harad, then you can start with the Ritu Haritaki routine.