What is Natural Factors Senior's Multi Probiotic 35 Billion and what is it used for?
Natural Factors Senior's Multi Probiotic 35 Billion is a probiotic supplement formulated specifically for adults over 50, providing 35 billion CFU per vegetable capsule at end of shelf life. It contains 8 strains of Lactobacillus and Bifidobacterium, including L. rhamnosus HA-111, B. breve HA-129, B. longum HA-135, L. acidophilus HA-122, L. plantarum HA-119, L. helveticus L10, B. bifidum HA-132, and B. animalis HA-194. The formula is designed to restore Bifidobacterium populations that naturally decline with age, supporting intestinal health, bowel regularity, and age-related immune function. NPN 80050483.
What probiotic strains are in Natural Factors Senior's Probiotic and why were they chosen for older adults?
The 8-strain formula specifically emphasizes Bifidobacterium species (B. breve HA-129, B. longum HA-135, B. bifidum HA-132, B. animalis HA-194), because Bifidobacterium populations decline significantly with age — studies show elderly populations have substantially lower Bifidobacterium diversity than younger adults. This decline correlates with increased constipation, bloating, immune dysfunction, and inflammation. L. rhamnosus HA-111 is included for its clinical evidence supporting immune activation in older adults. L. acidophilus HA-122 helps reduce gastrointestinal side effects and yeast infections associated with antibiotic use. The formula includes prebiotic FOS (fructooligosaccharides) to nourish the probiotic strains. Each capsule has natural acid resistance to survive stomach transit and arrive active in the intestine.
Who should take Natural Factors Senior's Probiotic and how should it be used?
This probiotic is designed for adults over 50 who want to support digestive regularity, bowel comfort, and immune function as natural probiotic populations decline with age. It is also useful during and after antibiotic courses, which disrupt gut microbiota. Take 1 to 2 capsules daily, or as directed by a healthcare practitioner. If taking antibiotics, take the probiotic at least 2 hours after the antibiotic dose to prevent interference. Refrigeration is not required but is recommended to maintain maximum potency. Not suitable for pregnant or nursing women without healthcare practitioner guidance. Consult a healthcare practitioner if immune-compromised.
What makes Natural Factors Senior's Probiotic different from general-purpose probiotics?
Most general-purpose probiotics are formulated around Lactobacillus and designed for younger adult gut profiles. This formula is age-targeted: it specifically restores Bifidobacterium species that are clinically documented to decline with aging, making it biologically relevant to the older adult gut in a way most probiotics are not. Natural Factors holds TGA (Australian Therapeutic Goods Administration) certification for its manufacturing facility — one of the most rigorous global standards for supplement production, which is uncommon among Canadian brands. All products are tested via ISURA for over 800 contaminants and undergo four rounds of quality testing, double the industry standard. The HA-series strain designations indicate they are proprietary strains with specific documented characteristics, not commodity strains bought from a bulk supplier.
What is Natural Factors, and is it a trustworthy supplement brand?
Natural Factors is a Canadian-owned supplement manufacturer founded in 1948 and headquartered in Coquitlam, British Columbia. One of North America's largest supplement makers, it operates over 1,000 acres of certified organic farmland in BC's Okanagan Valley and manufactures in-house at Health Canada-licensed, FDA-inspected facilities. Every product is third-party tested through ISURA for over 800 contaminants including pesticides and heavy metals. Natural Factors is also B Corp certified, meeting rigorous environmental and social standards.
What is Natural Factors and is it a reliable Canadian supplement brand?
Natural Factors is one of Canada's largest supplement manufacturers, founded in 1955 by Jack and Rona Katz in British Columbia and still 100% Canadian family-owned. The company controls every production stage from raw material sourcing to finished product. Its facility holds TGA certification from Australia's Therapeutic Goods Administration, one of the world's strictest supplement manufacturing standards. All products are ISURA certified — independently tested for 800+ contaminants including pesticides and heavy metals — and Natural Factors conducts four rounds of product testing, double the industry average of two.
What sets Natural Factors apart from other supplement brands?
Natural Factors' most distinctive quality is vertical integration: the company grows its own raw herbs on 1,000+ acres of certified organic farmland in BC's Okanagan Valley, then processes and manufactures in-house. Most supplement brands source raw materials from external suppliers with no direct agricultural control. Natural Factors also uses ISURA third-party testing, a Canadian standard that screens for over 800 contaminants, well beyond typical heavy-metal panels. B Corp certification further reflects a documented commitment to environmental and social accountability, not just a marketing claim.
What makes Natural Factors different from other Canadian supplement manufacturers?
Natural Factors holds TGA certification from Australia's Therapeutic Goods Administration — one of the world's most rigorous pharmaceutical manufacturing standards, rarely earned by Canadian brands and far exceeding most North American certification requirements. Its ISURA testing program screens every product for 800+ contaminants, and it conducts four rounds of quality testing per product versus the industry standard of two. The company also operates its own farm in the Okanagan Valley for select botanical ingredients — a level of vertical integration uncommon among supplement manufacturers — and has been family-owned for over 70 years.
The information provided above is for reference purposes only and has not been reviewed or approved by Health Canada. It does not constitute medical advice and should not replace consultation with a qualified healthcare professional.