RDA means Recommended Dietary Allowance:

Like a doctor’s prescription on dosage of medicine, there is a limit designed for sugar, sodium and fat. These recommendations help us to understand how much sugar, sodium and fat we must take in a day for a 2000 calorie diet. These values are known as RDA. Look at the RDA (Recommended Dietary Allowance) values listed:

Recommended Nutrition Intake Level (RDA) for 2000 kcal
30 g
2000 mg
22 g

*Sugar’s  value as per RDA for 2000 kcal is 50 grams. Here it  has been changed from 50 g to 30 g as ICMR recommends not to consume more than 30 grams of sugar a day (Added sugar).

The World Health Organisation (WHO) has taken a step further to reduce sugar intake to about 25 grams (5% of total energy) per day (Added Sugar) for better health.