“Why does my doctor prescribe antibiotics when I’m sick to kill off germs, but then tell me to take probiotics to put bacteria back in my body?” Probiotics and antibiotics both play an important role in our health, but have very different roles.

What Are Probiotics?

Probiotics refer to the live bacteria that are beneficial for our digestive system. There are trillions of microorganisms in our gut, both good and bad. Probiotics occur naturally in fermented foods like yogurt, sauerkraut, and kimchi. You can also find probiotic dietary supplements. Regular consumption of probiotics can help maintain the natural balance of gut bacteria.

Probiotics help support digestion, strengthen the immune system, improve nutrient absorption, and even promote mental well-being. They are especially helpful after a round of antibiotics as they can replenish the beneficial bacteria that may have been wiped out by the medication.

What Are Antibiotics?

Antibiotics, on the other hand, are medications used to treat bacterial infections. They work by killing the bacteria, or inhibiting the bacteria from growing, which can be beneficial for curing some illnesses. Antibiotics are commonly prescribed for conditions such as: respiratory infections, skin infections, and urinary tract infections, among others.

While antibiotics are effective against harmful bacteria, they not only kill the harmful bacteria causing the infection but also eliminate many beneficial bacteria, disrupting the delicate ecosystem of our gut microbiome.

The Differences:

1. Purpose
Probiotics are taken to promote the growth of beneficial bacteria in the gut to and maintain a healthy gut flora. They are generally used as a preventive measure and to support overall well-being. Antibiotics, on the other hand, are prescribed specifically to eliminate harmful bacteria that cause infections.

2. How They Work
Probiotics work by introducing live microorganisms into the gut, which then multiply, promoting a healthy balance of bacteria. Antibiotics, on the other hand, directly target the bacteria and either kill them or prevent their growth.

3. Impact on Gut Health
Probiotics help improve gut health by maintaining the balance of bacteria and supporting digestion. Antibiotics, although necessary in treating infections, can disrupt the natural balance of bacteria in the gut and sometimes lead to conditions like antibiotic-associated diarrhea or yeast infections.

4. Side Effects
Probiotics are generally considered safe, with minimal side effects such as gas or bloating, which are usually temporary. Antibiotics, on the other hand, can have more serious side effects, including allergic reactions, stomach upset, and the development of antibiotic-resistant bacteria.

5. Usage and Prescription
Probiotics are widely available as dietary supplements and are also naturally found in certain foods. They can generally be used without a prescription. Antibiotics, however, are prescription drugs and should only be taken when prescribed by a healthcare professional for a specific bacterial infection.