If your gut is super compromised, you may not be ready for probiotics. However, you can only really determine that by taking them. They won’t hurt you. Sometimes gut healing must begin with healing the gut in other ways first, but you have nothing to lose by trying probiotics out. I know I have said it before but serotonin is made mostly in the gut and that’s what you need to alleviate depression. Get your gut right and your head will follow.

Now, I just want to make this clear. Probiotics are the key but the science and the range of probiotic supplements available are still in infancy. I have no doubt that over the next 20 years the range and effectiveness of probiotic supplements and awareness will increase exponentially.

The problem is that you have depression NOW and you want it gone. It can be gone with the right probiotics that are available at your drugstore now.

Which Probiotics?

You can buy probiotics at the chemist, or drugstore or healthfood store. Buy the best ones you can afford, not the cheapest ones. Ideally, they will be refrigerated, more than one type of culture, be 5 to 100 billion CFU per dose. I suggest starting at 5 billion CFU per day and work your way up to 50 billion if you are going well. Look for Lactobacillus acidophilus which is like the garden variety bacteria but important. Search also for Bifidobacterium.

lactobacillus acidophilus

Possibly the most important probiotic you can get is called Lactobacillus Acidophilus. It's like the 101 of probiotics, the Holden or Chevy (in America), the Toyota in Asia. It’s not the Mercedes or Rolls Royce or Lexus. Its like a pickup truck, or a Ute in Austraila. It's versatile. Really no probiotic formula should be without it, but occasionally it is left out when only Bifidobacterium are needed (I will talk about this later).

Just the presence of Lactobacillus acidophilus in sufficient numbers is a help to most other beneficial bacteria. L. Acidophilous creates the right conditions for other good bacteria to thrive. You will find this bacteria in almost all yoghurts or fermented milk drinks, the only issue here is that it probably will not be in sufficient numbers to be greatly beneficial and yoghurts often contain additional sugar, 

Here’s a list of typical species found in commercial probiotics.

  • Lactobacillus acidophilous
  • Lactobacillus plantarum
  • Lactobacillus rhamnosus
  • Lactobacillus bulgaricus
  • Lactobacillus delbreckii
  • Lactobacillus casei
  • Lactobacillus salivarius


  • Bifidobacterium longum
  • Bifidobacterium brevis
  • Bifidobacterium animalis
  • Bifidobacterium bifidum
  • Bifidobacterium infantis
  • Streptococcus Thermophilus
  • Bacillus coagulans (sporogenes)
  • Bacillus laterosporous
  • Pediococcus acidilacti
  • E.coli (nissile 1918)
  • Sacchromyeces Boulardii (not technically a bacteria but a beneficial yeast)

For the moment (I will explain later) I would stick with the following bacteria in any probiotic supplement:

  • L. acidophilus
  • L.rhamnosus
  • L.plantarum
  • Any of the Bifido species.
  • Bacillus coagulans, which is usually found only on its own. does not require refrigeration.

There are heaps of other good probiotic supplements. Refrigerated probiotics are the best.

Until you have cured your depression and anxiety with probiotics, I would stick to the well documented products with proven strains and safety.

I have learned that there are a couple of other sub-types of probiotics that can also be important.

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