When your little gourmet starts eating solids , what food to give and what food to avoid becomes an equation with multiple variables. When it comes to some foods, this equation becomes harder. Garlic is one of them... 
Some cultures act very cautious about introducing garlic to little babies. On the contrary others opt for immediately feeding their baby garlic right after they start eating solids.

Benefits of garlic
Garlic has countless benefits...First of all it is one of the foods that boost the immunity of the body... It is believed to cure common cold... The reason for this is it's allicin content. Allicin has antibacterial and antiviral functions. It is also responsible for the strong odor of the garlic. Garlic also has anti-inflammatory properties that help reduce the risk of asthma in adult life of the baby.
Clove of garlic helps iron absorptionof your baby just like onion...
Garlic contains  Vitamin C, Vitamin B6, Vitamin B1, manganese, selenium, potassium and iron.

Keep in mind
It is possible to buy garlic in dried form. However if you want your baby to fully benefit from garlic, prefer raw garlic instead of garlic powder.  You may chop it in small sizes, crush it or grate it. And then add it to your dishes. Experts recommend to keep garlic aside for 10 minutes after crushing. Don't immediately cook it. This 10 minute break allows allicin to be fully released. This way garlic's allicin content will act as an anti-bacterial and anti-viral agent protecting your babies.  Also it is a good idea not to overcook garlic. This way it will not lose its nutritional value.
Also if you complain about odor of garlic, don't forget that chewing parsley after eating garlic helps to eliminate this odor. You may add a little parsley in his food if you don't want your baby to smell garlic.
You may add garlic to mashed veggies.
Always follow the same principle that you follow with other foods. Yes, we use garlic to flavor our dishes but it's totally new for our babies. When you are introducing garlic, feed it with another food that you are sure your baby is not allergicto. In other words, don't introduce another new food with garlic.  And then follow the  three day waiting rule... Also always taste the food with garlic before you feed it to your baby. Some garlic may be very tangy.
Nutritional value per 100 gram garlic;

Protein 6.36 gram
Vitamin C 31.2 mg
Vitamin A 9 IU
Sodium 153 mg
Potassium 401 mg
Calcium 181 mg
Selenium 14.2 mcg
Phosphor 153 mg
Magnesium 25 mg
Manganese 1.672 mg