Are you tired, sluggish, or burned out? Then ignite your health with Bio-Strath!
Bio-Strath is a 100% natural nutritional supplement made from fermented herbal yeast. This easily absorbed and balanced formula features 61 micronutrients, including vitamins, minerals, trace elements, amino acids, and other building blocks that can benefit all age groups. Bio-Strath helps promote well-being by reducing fatigue and supporting the body during periods of physical and mental stress. Manufactured in Switzerland since 1961, this family-owned brand is rooted in science, with over 42 positive published studies.
Who can benefit from Bio-Strath?
People with demanding lifestyles and students
- Better concentration
- Alleviation of learning fatigue
- Resistance to stress and work overload
Athletes and sports enthusiasts
- Improved stamina and vitality
- Enhanced physical and mental performance
- Shorter post-exercise recovery period
Older adults or those convalescing
- The benefits of Bio-Strath are especially helpful for older adults by improving energy, vitality, alertness, and resistance—particularly in times of need, such as during convalescence.
Science matters!
Bio-Strath has over 42 positive published scientific studies, including:

A – Clinical studies show Bio-Strath helps increase nutrient absorption by 6–10 times the baseline amount.¹
B – A clinical study shows a 64% improvement in concentration, fatigue, vitality, reaction time, and physical and mental performance.²
C – Attention deficit disorders (ADD/ADHD)
A clinical study revealed significant improvements in over two-thirds of students with respect to impulsiveness, attentiveness, and concentration. All children benefited in terms of fatigue and vitality. Positive changes in social behaviour at school and at home were also observed.⁹
With over 42 positive clinical studies—including those on the gut microbiome, bioavailability, immune defence, ADD/ADHD, improved concentration/performance, radiotherapy/chemotherapy/convalescence, osteoporosis, hemoglobin during pregnancy, and geriatric concerns—this 100% natural nutritional supplement is a well-researched option you can feel confident choosing.
Benefits of vital substances found in Bio-Strath
- L-Carnitine: Known to help the body produce energy and support cognitive health. It benefits individuals affected by chronic fatigue, attention deficit hyperactivity, and those seeking to improve athletic performance and endurance.
- Lecithin: Facilitates the absorption of nutrients and stimulates memory function.
- Mannan: Improves gastrointestinal health and overall well-being, thereby increasing energy levels and performance. As a prebiotic, it supports intestinal flora health and boosts nutrient absorption.³
- L-Tyrosine: Helps create chemical messengers involved in neurological processes, enhancing mental alertness. It supports attention deficit hyperactivity, alertness after sleep deprivation, stress, and chronic fatigue.
B Vitamins
B vitamins positively affect the nervous and immune systems, as well as physical functions. They help⁴⁵⁶:
- Metabolize carbohydrates, fats, and proteins
- Promote tissue growth and formation
- Support the formation of red blood cells
- Help prevent anemia
- Improve concentration, energy, and mood
- Combat symptoms associated with excessive stress
- Support adrenal gland function, which is vital for stress management
B vitamins are water-soluble and cannot be stored in the body. They are eliminated through urine and need to be replenished daily.
Beta-Glucan: Known to improve both mental and physical energy levels. As a soluble fibre, beta-glucan helps lower “bad” (LDL) cholesterol.⁷ It strengthens the immune system and increases resistance to Candida albicans.⁸
Glutathione: A potent antioxidant essential for tissue repair, immune support, and the metabolism of toxins and carcinogens.
Bio-Strath is available in tablets, liquid elixir, and drops to suit your needs.
It contains no lactose, colouring agents, artificial sweeteners, preservatives, synthetic additives, or GMOs. Tablets and drops are suitable for vegetarian and vegan diets, while the elixir is suitable for vegetarians.
References:
¹ Engelhart-Jentzsch K. et al., Plasmolysed herbal yeast (Strath®) improves micronutrient bioavailability: An in vitro study using Caco-2 intestinal epithelial cells, Agro FOOD Industry Hi Tech – vol. 29(2) March/April 2018
² Dörling E., Bio-Strath® and increased efficiency, a double-blind study with Methionine Bio-Strath® Food Supplement on 60 test subjects, SWISS PHARMA 1981; 11: 27–37
³ “Yeast Cell Wall”, European Association for Specialty Yeast Products
⁴ Health Canada, Multi-Vitamin/Mineral Supplement Monograph
⁵ Natural Medicines Comprehensive Database, Vitamin B12 monograph
⁶ Passeport Santé: Vitamines – leurs fonctions, les meilleures sources
⁷ “The Biological Activity of Beta-Glucans”, Minerva Medical; 100(3):237-245; PubMed 19571787; June 2009
⁸ Rice PJ et al., Oral delivery and gastrointestinal absorption of soluble glucans stimulate increased resistance to infectious challenge, East Tennessee State University. J Pharmacol Exp Ther. Jun 23, 2005
⁹ König S., Joller P., The influence of a food supplement on the behaviour of children with attention deficit disorders (ADD/ADHD), Application study with the herbal yeast product Bio-Strath®, Pädiatrie 2006; 1: 1–4
About the Author: Bio-Strath
Bio-Strath is a Swiss brand with over 60 years of experience making natural herbal yeast supplements. Using clean ingredients and careful processing, Bio-Strath supports energy, immunity, and overall wellness to help people feel balanced and resilient every day.