Conclusion
In most cases, garlic breath occurs when you eat garlic or foods that contain garlic. However, people who have a severe liver disease may also experience garlic breath.
Bad breath caused by garlic or onion can be treated. It helps to take precautions if you know you might have garlic breath. For instance, you should stay away from these vegetables if you are going for an interview.
References
[1] https://www.webmd.com/a-to-z-guides/baking-soda-do-dont
[2] https://health.clevelandclinic.org/essential-oils-101-do-they-work-how-do-you-use-them/
[3] https://www.medicalnewstoday.com/articles/157973
[4] https://www.nhs.uk/conditions/bad-breath/
[5] https://www.mayoclinic.org/diseases-conditions/salivary-gland-cancer/symptoms-causes/syc-20354151
[6] https://pubs.acs.org/doi/abs/10.1021/jf990521%2B