It is not recommended for pregnant or breastfeeding women to consume Klamath blue green algae without the guidance of a healthcare professional.

During pregnancy, a woman's nutritional needs change, and it is important to ensure that any supplement consumed is safe for both the mother and the developing fetus. Additionally, there is limited research on the effects of Klamath blue green algae on pregnant women and their unborn children.

While breastfeeding, a woman's body is providing nutrients to the baby and it is important to ensure that any supplement consumed is safe for both the mother and the baby.

It is important to consult with a obstetrician or other qualified healthcare professional before consuming Klamath blue green algae during pregnancy or breastfeeding. They will be able to determine whether Klamath blue green algae is appropriate and what dosage would be appropriate.

It is also important to keep in mind that pregnant and breastfeeding women should not consume any supplement without the approval of a healthcare professional.