A person holding two pills in their palm
A person holding two pills in their palm
a bunch of purple balls are in the air
a bunch of purple balls are in the air
a group of pills sitting on top of a green surface
a group of pills sitting on top of a green surface

BEST PROBIOTICS FOR ADULTS

TOP 5 PROBIOTICS

Probiotics are live microorganisms, often called "good bacteria," that can provide health benefits when taken in adequate amounts. Your gut is home to trillions of bacteria — collectively known as your gut microbiome. The most robust evidence supports their use in the prevention and treatment of acute infectious diarrhea, antibiotic-associated diarrhea, and prevention of Clostridioides difficile infection in patients receiving antibiotics. There is emerging evidence for roles in metabolic health (e.g., obesity, type 2 diabetes), allergic disorders, and mental health via the gut-brain axis.

Modern life — stress, antibiotics, poor diet — can disrupt the balance of your gut microbiome. That’s where probiotics come in.

Benefits of Probiotics: Improve digestion and reduce bloating, relieve constipation and diarrhea, ease symptoms of irritable bowel syndrome (IBS), support your immune system, improve skin conditions like eczema, promote a balanced mood and mental well-being

As a physician, I’ve reviewed many options. If you're considering adding a probiotic to your routine, here are a few trusted brands I recommend (affiliate links below):

Most popular among gastroenterologists, manufactured by a reputable lab. Align contains the unique Bifidobacterium 35624 strain backed by 20+ years of research. It supports digestive balance, reduces occasional upset, and promotes regularity — ideal for those seeking reliable gut health support.

ALIGN
CULTURELLE

Featuring the clinically studied Lactobacillus rhamnosus GG strain, Culturelle helps reduce gas, bloating, and occasional diarrhea. It supports a healthy gut microbiome and boosts immune defenses — perfect for everyday digestive comfort.

Renew Life Extra Care Ultimate Flora Probiotic

With 50 billion live cultures from 12 strains, this extra-strength probiotic promotes digestive balance, regularity, and immune health — especially beneficial after antibiotics or during digestive distress.

Nature’s Bounty Ultra Strength Probiotic 10

A budget-friendly option that offers 20 billion CFU and 10 strains to support digestion and immune function. Free from artificial additives, it’s a simple way to maintain your gut health daily.

Now Foods Probiotic-10 25 Billion

Packed with 25 billion CFU and 10 powerful strains, Now Foods supports your gastrointestinal health, nutrient absorption, and immune system — a trusted formula for comprehensive gut support.