Possible side effects
Probiotic supplements can cause temporary gas, bloating or changes in bowel habits, especially when first introduced. Other reactions depend on the person and the ingredients. Stop using the product and seek advice if symptoms are strong, persistent or worrying.
Who should avoid or check first?
- Anyone with a fish allergy
- Anyone with a milk or colostrum allergy
- People who are pregnant or breastfeeding
- People taking prescription medicines
- People with a weakened immune system or a serious health condition
- Anyone under 18 unless a clinician specifically approves it
Warning signs that need care
Get medical help for trouble breathing, facial swelling or another sign of a serious allergic reaction. Persistent abdominal pain, blood in stool, black stool, unexplained weight loss, fever, repeated vomiting or a sudden major bowel change also needs medical assessment.
How to reduce avoidable problems
Follow the bottle directions, do not double the dose and do not start several new supplements on the same day. Keep the packaging and record when you began taking it. That makes it easier to identify a reaction.

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