Both have high nutritional value.

1. Choy sum is rich in vitamins, minerals and dietary fiber, which helps enhance immunity, prevent iron deficiency anemia, clear away heat and detoxify, disperse blood and reduce swelling, etc.

2. Shanghai green is also rich in vitamins and has the effect of inhibiting ulcers. Regular consumption has a good effect on skin and eye care. In addition, Shanghai Qing is also rich in fiber, which can effectively improve constipation.

Both choy sum and Shanghai greens are vegetables, both of which are rich in nutrients.