I've mentioned the connection between gut health and overall wellness many times before.
The bacteria in your gut influence hormone levels and can either support or disrupt various bodily functions. So, it's no surprise they're tied to a laundry list of health issues ranging from high blood pressure to depression.
Now, a team of scientists has taken a deeper dive into how probiotics impact our mental health.
The study, published in npj Mental Health Research, found that taking daily probiotics containing common bacteria, such as Lactobacillus and Bifidobacterium, for just one month can significantly reduce negative feelings.
Wondering how the gut bacteria could possibly affect your mood? That’s a great question.
Well, it turns out our gut and brain are constantly chatting through what scientists call the "gut-brain connection." This “conversation” happens through various routes, including the vagus nerve, immune system, and hormones.
When you take probiotics, you're essentially sending in the good bacteria cavalry to restore order to your gut kingdom. These microscopic heroes influence your brain's function through this gut-brain superhighway.
It's like having tiny therapists living in your intestines, working overtime to improve your mood—for the cost of a yogurt instead of $200 an hour.
This research underscores what I've been saying for years: your gut health isn't just about digestion—it's also a major player in your mental well-being.
To improve your gut health, and potentially boost your mood, start here:Add fermented foods like yogurt, kefir, and sauerkraut to your dietChoose probiotic supplements containing Lactobacillus and BifidobacteriumEat more fiber-rich foods to feed your good gut bacteriaCut back on processed foods and added sugars, which feed the bad bugsStay hydrated to keep your digestive system running smoothlyRemember, while managing your gut health is a promising strategy for mood enhancement, it's not a silver bullet. If you're struggling with persistent negative feelings or depression, it's crucial to seek professional help.
Health and Happiness,
Dr. Scott Olson, ND
P.S. Is your gut “good”? Here's how to check...
Source:
Johnson, K.VA., Steenbergen, L. Probiotics reduce negative mood over time: the value of daily self-reports in detecting effects. npj Mental Health Res 4, 10 (2025). DOI:10.1038/s44184-025-00123-z
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