Student or Learner
In the following ,
'Women past childbearing age can eat up to four portions of oily fish - such as salmon, tuna, and sardines- a week. Women of childbearing age should keep to a maximum of two portions a week.'
I don't know the exact meaning of 'portion' in the context.
Please help me.
It's a measure used for quantities of food as recommended by doctors, nutritionists, etc: