Daily Health
·19/11/2025
People praise fermented pickles and olives for their gut friendly bacteria - yet only one of the two delivers a fuller set of nutrients. The identity of the winner is not obvious.
Probiotics are live cells that, in large enough numbers, give the host a measurable health gain. Lacto-fermentation lets those cells multiply. Cucumbers or olives rest in a salt water bath - natural bacteria eat the food's own sugars and release lactic acid. The acid preserves the food but also blocks spoilage organisms while the helpful bacteria stay alive.
Classic pickles form when cucumbers ferment in brine - the liquid ends up full of strains like Lacticaseibacillus paracasei. Yet most shelf stable jars contain vinegar and undergo pasteurisation - both steps kill every microbe. For live cultures, buy refrigerated pickles that carry the words “naturally fermented” or “live and active cultures.” Pickles add a little fibre - yet a single serving often exceeds daily sodium limits - excess salt lowers microbial variety in the colon.
Olives that ferment in brine also host lactic acid bacteria, chiefly Lactobacillus plantarum besides Lactobacillus pentosus. Pasteurised or vinegar packed olives lose those cells. Beyond microbes olives give vitamin E, polyphenols as well as monounsaturated fat - all three protect human cells from damage. Olives contain more fibre than pickles. Their sodium content, however, matches or surpasses that of pickles.
Choose products kept in the refrigerated aisle and marked “naturally fermented,” “lacto-fermented,” or “contains live and active cultures.” Skip any list that starts with vinegar or lye - both wipe out the desired bacteria. Trusted brands still use salt - limit serving size and balance the rest of the day's meals around lower salt foods.









