Viability of Probiotics Experiment

Viability of Probiotics Experiment

Probiotics are supplements that contain “good” bacteria, such as Lactobacillus acidophilus and Bifidobacterium infantis, which can help improve digestion and protect you from harmful bacteria.

Probiotics have a short shelf life and require refrigeration to retain potency. Heat, moisture and direct sunlight can destroy the “good” bacteria in probiotic supplements.

However, according to Jordan Rubin and Joseph Brasco, authors of “Restoring Your Digestive Health,” you can test the viability of any probiotic supplement at home before risking the chance of taking a supplement that might not be effective.

1) Milk (I used organic whole milk)
2) Two probiotics capsules (empty out the powder into the milk)
or ½ teaspoon of powdered probiotics

Step 1
Pour 4 oz. of cold milk into a glass container. Add two capsules or ½ teaspoon of powdered probiotic to the milk. Gently stir to dissolve.

Step 2
Place the glass in a room temperature location. Cover it so that some air can get in, but will mostly prevent dust, etc. from getting in. Leave the glass untouched for 48 hours.

Step 3
Check the milk/probiotic solution after the time has elapsed. If the milk has not curdled or thickened into a yogurt consistency, the probiotic is most likely not viable. The test works by measuring the ability of the probiotic to produce enzymes. If the probiotic can’t produce enzymes in the milk, it probably won’t be able to produce enzymes in the stomach.


Lillian Harvey
Lillian Harvey
Lillian is a freelance writer based in Des Moines, Iowa. Passionate about all things wellness. She aims to bring seemingly intimidating food and fitness concepts down to earth for readers.
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