What’s the Best Probiotic?
You’ve probably asked this before:“Which probiotic should I take?”
And if you’ve browsed a health store shelf recently, you know the options are endless—10 billion CFUs, 50 billion, 100 billion… acidophilus, bifidobacterium, soil-based… it’s overwhelming.
But here’s the truth:
There is no one-size-fits-all probiotic.
Why? Because your gut is unique.
Your microbiome—an ecosystem of trillions of bacteria—is as personal as your fingerprint.
And while supplements can play a role, the best probiotic for you depends on three key things:
1. Your Gut Terrain
Even the highest-quality probiotic won’t flourish if your internal environment is imbalanced.
Think of it like planting seeds in dry, depleted soil—without nourishment and balance, they won’t grow.
Your gut lining, digestive function, inflammation levels, and immune health all shape how well probiotics work.
So, before you ask what brand to buy, ask: is my gut ready to receive it?
2. Diversity Over Dosage
Many people believe “more CFUs = better results.” But science tells a different story.
What really matters is strain diversity—different strains do different jobs.
Lactobacillus might support digestion and immunity. Bifidobacterium might calm inflammation. Saccharomyces boulardii might help after antibiotics.
One strain isn’t better than another—they’re just different tools.
3. Support With Pre- and Postbiotics
Probiotics don’t work alone. They need the right fuel (prebiotics) and environment (postbiotics) to thrive.
Prebiotics are the fibres that feed good bacteria. You’ll find them in leeks, onions, garlic, artichokes, asparagus, oats, flax, and more.
Postbiotics are the beneficial compounds bacteria produce—like short-chain fatty acids—that help reduce inflammation and support the immune system.
By nourishing your whole ecosystem, you help the good bacteria take root.
So, what’s the real answer?
The best probiotic is:
The one your unique body needs
The one that’s supported by your daily habits
And the one that works in harmony with your lifestyle, stress, sleep, and nutrition
Please note, the links provided are Amazon affiliate links. If you buy something using these links, I will receive a small commission, at no additional cost to you. Rest assured that all products recommended have been personally used and endorsed by myself.
Milena Kaler is a is a qualified London Nutritionist, stubborn weight loss, digestive health, and autoimmune disease nutrition specialist. She is trained in the principles of Functional Medicine and practices from her clinic in Central London, Harley Street, as well as providing online consultations.
Milena has helped thousands of people to lose weight and keep it off. Scientific and holistic in approach Milena looks at all aspects of a client’s health. She embraces a systems-oriented approach aiming to get to the root cause of health and weight issues instead of simply focusing on the symptoms.
Milena’s expertise has been sought by royalty, celebrities, and she has been featured as a nutrition expert in reputable magazines including Women’s Health, Elle, Harper’s Bazaar, GQ, Cosmopolitan, Glamour, Women’s Fitness, Peak Brain Training, and Metro.
As a full member of the British Association for Applied Nutrition and Nutritional Therapy (BANT), and the Complementary and Natural Healthcare Council (CNHC), the only register for Nutritional Therapy recognised by the government and NHS, Milena is committed to upholding their strict Code of Ethics.
Additionally, Milena is a member of The Royal Society of Medicine and The Primary Care Society for Gastroenterology (PCSG).
Milena sees patients with chronic health conditions, as well as clients looking for support to optimise their health. Some of the areas Milena can help with include: weight loss, digestive, hormonal, autoimmune disease, menopause, and skin health.
Milena sees every person as an individual with different problems and different goals. She takes time to listen to her clients’ specific concerns to develop customised nutrition and lifestyle plans, based on laboratory test results. Having overcome her own chronic health and weight loss issues, Milena really understands how it is to feel overwhelmed by poor health and can relate to her clients when they first come to see her.
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