See the wait is ok but it is on border line

Mam actually I couldn't attend my regular doctor whose hospital is in one of the sealed containment zone, but I contacted her over phone and she suggested to take l arginine and b protein, as she was worried with the weight of baby, I am only confused whether she heard the weight correctly or not, because on internet I found the normal weight for 20weeks fetus be 300gms

don't worry you need not take it right now it is not required

Why should you take it as your doctor told you

Mam what should be the ideal weight! Should I take l arginine