Safety and side effects

Possible side effects from acidophilus include:

• Constipation.
• Gas.
• Bloating.
• Increased thirst.

If you have a weakened immune system or other health conditions, talk to your healthcare professional before taking a product such as acidophilus that has live bacteria.

Premature infants who've received probiotics have had serious infections. Do not give probiotics to premature infants.

If you're lactose intolerant, be aware that some acidophilus products might have lactose.