Garlic has so many amazing health benefits however it may have some unwanted side effects, when eaten raw by mouth it can cause a burning sensation, heartburn, bloating, gas, garlic breath, nausea, vomiting, and body odor. Increasing the amount of garlic consumed can increase the chances of these side effects, so it's best to take caution.
Garlic can increase bleeding risk because it's known as a natural blood thinner. Always consult with your physician or doctor before consuming any garlic if you take blood thinners, low blood pressure, thyroid problems, and ulcers or other GI issues.
Speak to your doctor before consuming any garlic if you're taking any medications.