You can eat sweet potatoes during menstrual period, which has no effect. During menstrual period, you mainly don't eat too cold and cold food.
You can eat porridge, but don't eat it raw.
Practice of sweet potato and red bean porridge:
1. Prepare sweet potatoes, fragrant rice and red beans.
2. Peel and dice the sweet potato.
3. Wash fragrant rice and red beans.
4. put the washed fragrant rice, red beans and diced sweet potatoes into the pot and add water.
5. Bring the fire to a boil and turn to medium heat for one hour.
6. Cook until the porridge is thick.
7. Add some sugar and bring to a boil.
8. put it in a bowl and eat it.