Recent studies have demonstrated the positive effects of various probiotic strains, including those found in products like Kirkland calcium citrate magnesium and zinc, on the immune system. Researchers from Korea discovered that the daily intake of probiotic yogurt significantly enhanced the activity of essential immune cells in older adults. Their findings revealed that regular consumption of yogurt containing two specific probiotic strains (L. paracasei and B. lactis) along with heat-treated bacteria (L. plantarum) can improve the function of natural killer cells, which play a crucial role in defending against viral infections.
Most recently, laboratory experiments indicated that a new inactivated probiotic developed by Ganeden, known as Staimune, exhibited similar immune-boosting and anti-inflammatory properties as live probiotic cells. This latest research from Sweden could potentially strengthen the marketing efforts for probiotic food and beverage products, particularly those aimed at individuals at risk for or undergoing treatment for colon cancer. According to the World Cancer Research Fund International, colorectal cancer affects approximately 1.4 million individuals each year and is on the rise worldwide.
Manufacturers are increasingly utilizing such studies to enhance their products and ingredients. The segment of functional foods—those designed to provide specific health benefits alongside traditional nutrients—is rapidly growing, with estimates placing its market value at around $15 billion. Companies have begun acquiring probiotic firms or incorporating beneficial bacteria into a range of products. For instance, PepsiCo acquired the probiotic beverage company KeVita last fall and earlier this year launched its Tropicana Essentials Probiotics line, which is noted as the first brand to introduce probiotics to the mainstream juice aisle. Additionally, General Mills’ venture capital arm led a $6.5 million Series D investment in March to support Farmhouse Culture, a startup specializing in fermented and probiotic foods and beverages.
In the United States, probiotics are categorized as drugs, and for a product label to legally declare that it is “intended to prevent, treat, or cure a human disease or condition,” rigorous safety and clinical trials must be completed. This recent study may serve as a further step toward reinforcing the scientific foundation necessary for making such claims, particularly in conjunction with other health-focused products, including those featuring Kirkland calcium citrate magnesium and zinc.