Shargh newspaper published results of a study on Tuesday, with data collected from different parts in Iran on food intake and access to nutrition.
The daily cited non-governmental organizations and volunteers as having carried out the research, without elaborating.
The report said only 1.7% of households reported daily protein consumption while 27% of all households said they do not consume any kind of protein.
Among households with temporary employment, more than 93% consume protein less than once a week or not at all. In unemployed households, this figure rises to 95%.
No dairy
Iranians face ever-rising prices with inflation around 40%, according to officials. The national currency Rial has lost over 90% of its value since US sanctions were reimposed in 2018.
Dairy consumption is also low, posing a serious nutritional crisis for children.
According to the report, only 2% of children consume daily dairy, and 50% receive none at all, even among households with stable jobs.
The study said that among families classed as living in food poverty, 43% endured what it classed as economic hardship, 32% involved earning-age parents experiencing unemployment and 6% were effected by some form of addiction.