Yes. The best time to introduce beets to your baby is when (s)he is 8 to 10 months old. If you are concerned about nitrates, you can either boil or steam the beets.
Limit to 1 to 2 teaspoons of beets until your baby is one year old. Later, you can increase the amount gradually.
More importantly, do the 4-day test. You must do this test before introducing any new food to your baby. You must introduce only one food at a time. Introduce beets and wait for 4 days. If there is no symptom of any allergy, you can give them to your baby regularly.
Beets benefit your baby in numerous ways – they reduce the risk of anemia, improve digestion, and offer various other essential nutrients.