You also don't need to eat huge quantities of garlic to make your diet “healthy.”

A balanced eating pattern matters much more than relying on one particular ingredient.

Can Too Much Garlic Cause Problems?

For some people, large amounts of raw garlic can cause digestive discomfort.

Possible symptoms include:

• Heartburn
• Gas
• Bloating
• Stomach discomfort
• Nausea
• Mouth irritation

People with sensitive digestive systems may notice these effects more easily.

This doesn't mean garlic is unhealthy.

It simply means that individual tolerance varies.

Someone may enjoy several cloves without a problem, while another person may experience discomfort after a much smaller amount.

Garlic and concentrated garlic supplements can also interact with certain medications.

People taking medicines that affect blood clotting, for example, should discuss concentrated garlic supplements with their healthcare professional.

Normal culinary use and high-dose supplements are not necessarily equivalent.

That's another reason why viral health advice should distinguish between eating garlic as part of a meal and taking large amounts in concentrated form.

The Bottom Line

The claim that there are four specific types of garlic that nobody should ever buy, regardless of price, is too simplistic.

There are, however, clear reasons to avoid garlic that is:

Moldy.

Mushy or actively rotting.