Older people can safely take probiotics to supplement their naturally lower levels of friendly bacteria.

Levels of good bacteria, particularly Bifidobacteria in the large intestine, have been found to plummet by as much as 1,000 fold in individuals from 55 to 60 years old and onwards1. This imbalance of good and bad bacteria in the gut is thought to significantly contribute to older people's greater sensitivity to infections of the stomach and intestines. At an older age we can be more susceptible to health conditions including IBD, IBS, bloating, diarrhoea and indigestion; all of which originate in the gut. Additionally, immunoenescence (the deterioration of the immune system due to ageing) can cause negative changes in the gut microbiota of elderly people2. Supporting the body's balance of good bacteria can help maintain healthy digestion, a strong immune system, and overall vitality - especially in the elderly. If on a course of antibiotics, one should wait one hour before taking the probiotics.

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Note: Probiotics are not recommended for those with serious medical conditions eg. those who are severely immunosuppressed, have pancreatitis, are in the ICU, have melaena, have a central venous catheter, infants with short bowel syndrome, or to patients with open wounds following major surgery; unless under a doctor's care. Furthermore, pregnant or breastfeeding women should consult their doctor before taking certain probiotic supplements.

1. Ouwehand AC. et al. (2009) Influence of a combination of L. acidophilus NCFM® and lactitol on healthy elderly: intestinal and immune parameters. J Nutr. Feb; 101(3):367-75.
2. Kumar, M. et al., (2016) 'Human gut microbiota and healthy aging: Recent developments and future prospective'. Nutr Healthy Ageing; 4(1): 3-16