Daily Archives: March 7, 2018


Just How Beneficial Is ‘Good’ Bacteria to the Body?

It’s quite well known that the good bacteria of our internal microbiome help to support the health of the digestive system. However, recent research has highlighted other areas where using specific good bacteria could support other areas of health and wellbeing. This includes intimate health, skin health, mood and memory.

Good bacteria for mood and memory

In the last decade, it has been revealed that the brain and the gut are in constant communication with each other. This has led to a field of research known as ‘psychobiotics’, investigating the link between the gut flora and the development of psychological problems (1).

Specific bacteria shown to be helpful for mood and memory
  • Studies have indicated that probiotic treatment can induce behavioural and psychological changes, including improved memory and reduced anxiety (2). The strains with the most consistent research include Lactobacillus casei, Lactobacillus rhamnosus, Lactobacillus acidophilus and Bifidobacteria bifidum.
  • In a study on chronic fatigue syndrome, supplementation with L. casei was linked to a significant decrease in anxiety symptoms (3).
  • L. rhamnosus has been shown to reduce stress induced anxiety and depression (4).
  • A study providing L. acidophilus, L. casei and B. bifidus (2 billion of each) over 8 weeks: The patients who had received the probiotic combination had significantly decreased total scores on the Beck Depression Inventory. In addition, they had significant decreases in systemic inflammation (2,5).

Good bacteria for intimate health

Vaginal infections affect 300 million women worldwide:

  • 75% of women will suffer thrush at least once in their lives and over 5% will suffer recurrent episodes more than 4 times a year.
  • Bacterial Vaginosis (BV) is actually the most common cause of vaginal infections in women of childbearing age, affecting up to 84% women. BV in some women may also produce irritation and discomfort. Left untreated BV can lead to infertility and premature labour.

Treatment for BV (antibiotics) can lead to the overgrowth of candida, resulting in thrush. Likewise, treatments for thrush can lead to dysbiosis in the vaginal flora, resulting in a change in vaginal pH leading to BV. Therefore, a product which can address both issues, without the need for a woman to know which infection she has and offering prevention as well as treatment of both, will help to break the vicious cycle many women find themselves in.

Specific bacteria researched for intimate health

A combination of Lactobacillus rhamnosus, Lactobacillus plantarum and Bifidobateria animalis subsp. lactis has been extensively researched for their role in the maintenance of vaginal pH and control of bacteria and yeasts, and has been shown to be effective against both thrush and BV infections.

In a trial carried out using L. rhamnosus, L. plantarum and B. animalis subsp. lactis the women who were using the supplement reported effective relief from:

  • Itching
  • Burning
  • Discharge
  • Dryness (6)

Good bacteria to support skin health

The link between skin health and the health of the gut is not new. Researchers as far back as 1930 suspected a link between gut health and skin health – modern research though, has confirmed the importance of this relationship.

This means that good bacteria could be very helpful in reducing the severity of all manner of skin complaints.

Did you know?
    • 40% of those people who suffer with inflammatory bowel diseases, also struggle with some form of skin disorder.
    • Unbalanced gut flora is 10 times more common in those people who are suffering with acne rosacea.
    • Many skin conditions including acne rosacea, psoriasis and dermatitis have now been shown to be linked to increased levels of unfriendly bacteria in the gut.
Specific good bacteria researched for benefits in skin health

A combination of Lactobacillus plantarum, Lactobacillus reuteri and Lactobacillus rhamnosus, has been extensively trialled for its action on skin health. This specific combination has been found to inhibit the following pathogens: (7)

  • Staphyloccocus aureas – responsible for skin infections, pimples, impetigo, boils, abscesses and cellulitis. The combination of bacteria can inhibit this pathogen within 24 hours.
  • Pseudomonas aeruginosa – responsible for inflammation, sepsis, skin infections and dermatitis. The bacteria are strongly effective in reducing this pathogen within just 3 hours and they maintain their inhibitory effect for over 24 hours.
  • Propionibacterium acnes – responsible for skin discomforts such as acne vulgaris and oily skin. The bacterial combination has been shown to have the ability to inhibit this bacteria within 48 hours with a continued reduction over 7 days.
  • Staphylococcus epidermis – an opportunistic pathogen responsible for unbalanced skin microbiota and the worsening of skin conditions. The 3 strains reduced levels of this pathogen within 3 hours.

Written by Jenny Logan, Natures Aid Technical Training Manager

1. The best probiotics for mood: Psychobioitcs May enhance the Gut-Brain Connection. Kathleen Jade, UHN Daily, Apr. 2017.
2. The effects of probiotics on depressive symptoms in humans: a systematic review. Caroline J K Wallace Ann Gen Psychiatry 2017
3. A randomised, double blind, placebo controlled, pilot study of a probiotic in emotional symptoms of chronic fatigue syndrome. A Venket Roo et al, Gut Pathog, 2009
4. Ingestion of Lactobacillus strain regulates emotional behaviour and central GABA receptor expression in a mouse, via the Vegas nerve; Javier A Bravo et al, Proc Natl Acad Sci USA, 2011
5. Nutrition 2015 Sept 28 pii 50899-9007
6. Intimique FS – Efficacy Dossier – Principum Division – Rev 01/01/2017
7. Synbalance ProBeauty Shield – Efficacy Dossier Rev 01 2017