Varicose Veins

I doubt so. However you can consider using compression stockings/ socks to minimize worsening of the veins. Minimize standing or sitting for prolonged hours and elevate your legs at night. Those kept my legs from developing more; I had one small one from second tri. I used scholl's compression socks, avail in Watsons, guardian and unity.

I don't think by eating fruits will help. The cause could be due to family history, standing for long periods of time, pregnant, walk too often etc. You may want to wear compression socks or better seek medical advice from doctor.

You may find this article helpful https://www.medicalnewstoday.com/articles/321703#ten-home-treatments