Pregnancy
Preeclampsia
Preeclampsia is a pregnancy-related condition involving high blood pressure during pregnancy. It is discussed as an outcome that may be prevented or reduced, rather than as a general wellness concern.
Start with the essentials on Preeclampsia in pregnancy.
This list shows research findings, not treatments. Nothing here replaces medical care. If you have this condition, talk to a doctor.
What may help
None of these options has good evidence yet. Best evidence first.
2 options:1 not enough evidence1 not tested in people
BreathworkpracticeNot enough evidence
Too few or too small studies to know if it works.
The one study found a benefit.
One quasi-experimental study in 28 participants found reduced cold pressor reactivity after 2 months of Bhramari Pranayama; it did not establish that the practice prevents preeclampsia.
Open the Breathwork pageAcceptance and Commitment Therapy (ACT)practiceNot tested in people
Only tested in animals, cells or theory. Results like these often do not carry over to people.
The one study found a benefit.
ACT may support psychological adaptation in high-risk pregnancies such as Preeclampsia by reducing anxiety and supporting mindful coping with medical uncertainty.
Open the Acceptance and Commitment Therapy (ACT) page
The expert view shows every study, dose protocol and source.
What may help
Interventions recorded as helping with this condition2 listedThe best we have, but the evidence is still weak
- →PracticesBreathworkCertaintyLowSourceClinical
One quasi-experimental study in 28 participants found reduced cold pressor reactivity after 2 months of Bhramari Pranayama; it did not establish that the practice prevents preeclampsia.
Who was studied
- Healthy people and patients
Open BreathworkStudy result
One quasi-experimental study (n=28) found reduced cold pressor reactivity after 2 months of Bhr.P; authors suggest it may help prevent pre-eclampsia.
- →PracticesAcceptance and Commitment Therapy (ACT)CertaintyLowSourceTheoretical
ACT may support psychological adaptation in high-risk pregnancies such as Preeclampsia by reducing anxiety and supporting mindful coping with medical uncertainty.
Open Acceptance and Commitment Therapy (ACT)Study result
ACT may support psychological adaptation in high-risk pregnancies like preeclampsia by reducing anxiety and promoting mindful coping with medical uncertainty.
What to avoid
Interventions recorded as making it worseNothing in this library is currently recorded as making Preeclampsia worse. Coverage is partial, and absence here is not evidence of safety.
How to read the evidence
Evidence tier — overall strength of the evidence for the whole compound
- StrongWell established — backed by strong, consistent human research.
- ModerateSome genuine support, but mostly from small or lower-quality studies. Promising, not proven.
- PreliminaryEarly-stage evidence — a promising hypothesis, not an established effect yet.
- LimitedVery limited evidence — treat this as a hypothesis, not proof.
- InsufficientNot enough good evidence to draw conclusions yet.
Certainty — how sure we can be that the effect is real
- Very highVery sure — strong, consistent evidence
- HighFairly sure — consistent evidence from good studies
- MediumModerately sure — new studies could change this
- LowNot sure — little or mixed evidence
- Very lowVery unsure — almost no usable evidence
Source — where the data comes from
- Meta-analysisPooled analysis of many trials — the strongest evidence
- RCTRandomized controlled trial — a strong human study design
- ClinicalA human clinical study
- Reference knowledgeFrom general health-science or pharmacology references, not a study of this exact claim
- Animal researchStudied in animals, not humans
- Community reportsAggregated user reports — anecdotal signal, not evidence
- TheoreticalMechanism-based reasoning, not yet tested
Study grade — quality of each underlying study (A best, D weakest)
- AHigh-quality — strong, consistent human trials
- BGood — solid evidence with some limitations
- CModerate — limited, small, or mixed-quality studies
- DWeak — preliminary, indirect, or animal-only
Confidence — how strongly the sources back a finding
A 0–100 score from study quality and agreement
Most supplement evidence is graded C–D. Read it as preliminary signal, not proof.
Full write-up
What is it
Preeclampsia is a pregnancy-related condition involving high blood pressure during pregnancy. It is discussed as an outcome that may be prevented or reduced, rather than as a general wellness concern. Research has examined options including Calcium and Coenzyme Q10, but findings differ in probability and evidence strength. Anyone concerned about preeclampsia should consult a clinician.
Evidence-backed options
The options associated with Preeclampsia are primarily described as ways to reduce risk during pregnancy, rather than as established treatments after preeclampsia has developed. Calcium has the clearest supportive finding among the options listed, with a potentially greater benefit for women whose baseline calcium intake is low, those at high risk, and those in developing nations.
Coenzyme Q10 was studied at 200 mg/day from 20 weeks of pregnancy onward, with a reported reduction in preeclampsia incidence. However, the available findings do not establish how quickly any option might act, and they do not provide a common duration across options. Quercetin remains especially uncertain because the effect of pure quercetin itself on pregnancy-induced hypertension has not been investigated, despite related vascular, antioxidative, and anti-inflammatory findings.
Several options also apply only to specific circumstances or remain hypothesis-driven. The potential role of Vitamin B2 (Riboflavin) is linked to women with the variant TT genotype, while Selenium is most relevant to selenium-deficient pregnant women. Vitamin B9 (Folate) findings concern multivitamins containing folic acid rather than folate alone. Citrulline did not reduce preeclampsia risk or blood pressure in the reported trial among women with chronic hypertension, so its relevance remains particularly limited.
These findings should not be interpreted as interchangeable alternatives or as evidence that an option is appropriate for every pregnancy. Preeclampsia requires clinical care, and the relevance of any preventive option depends on individual risk factors and pregnancy circumstances.
What to avoid
Cycling is flagged because preeclampsia is a specific obstetric contraindication to vigorous cycling. The exertion involved may worsen blood pressure and increase maternal-fetal cardiovascular risk, making the activity a concern in this condition.
Hatha Yoga is also flagged based on its physiological properties. The available rationale does not specify which properties account for the concern, so no more specific explanation can be given here. Because preeclampsia involves maternal and fetal health considerations, activity choices should be discussed with a clinician.