Raspberry Leaf
Red Raspberry Leaf (Rubus idaeus)
A traditional women's herb known for uterine support, menstrual comfort, and preparation for childbirth.
Red Raspberry Leaf has been used for centuries as a uterine tonic and women's health herb. It's particularly popular during pregnancy (in the third trimester) to help prepare the uterus for labor. Beyond pregnancy, it's used to support menstrual health, ease cramps, and provide nutrients including iron, calcium, and magnesium.
Mechanisms of Action
Uterine Toning
Fragarine may help tone uterine muscles
Rich in Nutrients
Contains iron, calcium, magnesium, and vitamins
Recommended Dose
1-2g dried leaf as tea, 2-3 times daily
Loading: Not required
Optimal Timing
- Between meals as tea
- Divided throughout the day
Can be taken without food
Best Form
Dried leaf tea
Alternatives: Capsules, Tincture
Tea is traditional and allows enjoyment of the mild, pleasant taste.
Duration
Minimum: 4 weeks
Optimal: 12 weeks
Cycling: Not required
Note: Traditionally consumed as tea. During pregnancy, typically started in third trimester only.
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Menstrual Support
May help with menstrual cramps and heavy flow
Labor Preparation
Traditional use in third trimester of pregnancy
Traditional use; consult midwife or OB
Generally avoided until third trimester
Who Should NOT Take This
- First and second trimester of pregnancy
- History of premature labor
Drug Interactions
Tannins in raspberry leaf may reduce iron absorption when taken simultaneously. Separate doses by at least 2 hours.
Raspberry leaf may have mild cholinergic effects that could theoretically counteract anticholinergic medications.
Possible Side Effects
Tip: Stay hydrated
Warnings
- Do not use in early pregnancy without guidance
- Some studies associate raspberry leaf use with increased cesarean delivery rates — evidence is mixed
- Professional guidelines generally discourage herbal products during pregnancy; consult OB/midwife before use
Top studies from 40+ peer-reviewed papers
Socha MW et al. • Nutrients (2023)
“The currently available data indicate a weak effect of raspberry leaf extracts on labor induction and, at the same time, their possible negative impact on cervical ripening.”
Key Findings:
- The majority of women apply raspberry leaves during pregnancy to induce and ease labor.
- However, it has not been possible to determine the exact effect of using raspberry extracts on the course of childbirth and the perinatal period.
- Additionally, it is unclear whether this herb has only positive effects.
- The currently available data indicate a weak effect of raspberry leaf extracts on labor induction and, at the same time, their possible negative impact on cervical ripening.
Sławińska N et al. • Nutrients (2023)
“However, many preparations and compounds still lack appropriate evidence for their effectiveness in vivo, so their activity should first be assessed in animal studies and clinical trials.”
Key Findings:
- Last search was conducted on 16.01.2023.
- Various preparations from berry seeds are valuable sources of bioactive phytochemicals and could be used as functional foods or to make pharmaceuticals or cosmetics.
- Some products, like oil, flour, or extracts, are already available on the market.
- However, many preparations and compounds still lack appropriate evidence for their effectiveness in vivo, so their activity should first be assessed in animal studies and clinical trials.
Staszowska-Karkut M et al. • Nutrients (2020)
“Therefore, the leaves of berry bushes seem to be a promising source of substances that can be used as replacements for synthetic agents in the treatment and prevention of lifestyle diseases.”
Key Findings:
- This was reviewed and discussed in this article.
- The mineral content of their leaves was also summarized because minerals constitute a significant component of plant infusions.
- It has been shown that high antioxidant and biological activity of leaf extracts results from the presence of active phenolic compounds, which occur in definitely higher amounts than in fruits.
- Therefore, the leaves of berry bushes seem to be a promising source of substances that can be used as replacements for synthetic agents in the treatment and prevention of lifestyle diseases.
Nirumand MC et al. • International journal of molecular sciences (2018)
“Further investigations are required to confirm the safety and efficacy of these compounds.”
Key Findings:
- The main underlying mechanisms of these dietary plants and their isolated phytonutrients in the management of urolithiasis include diuretic, antispasmodic, and antioxidant activity, as well as an inhibitory effect on crystallization, nucleation, and aggregation of crystals.
- The results as presented in this review demonstrate the promising role of dietary plants and phytophenols in the prevention and management of kidney stones.
- Further investigations are required to confirm the safety and efficacy of these compounds.
Tao M et al. • Food & function (2026)
“It aims to provide the food science and nutrition community with an authoritative reference on ellagitannins in red raspberry and to guide their development and application as core ingredients for next-generation functional foods and nutraceuticals.”
Key Findings:
- In red raspberry (Rubus idaeus L.), ellagitannins constitute the predominant class of polyphenols, accounting for 53-76% of the total polyphenolic content, and their health-promoting potential is becoming increasingly evident.
- This review systematically delineates the chemical structures of ellagitannins, extraction and analytical techniques, in vivo metabolic pathways, and their multiple biological activities.
- It aims to provide the food science and nutrition community with an authoritative reference on ellagitannins in red raspberry and to guide their development and application as core ingredients for next-generation functional foods and nutraceuticals.
Study Type Distribution
Goals This Supplement Supports
This information is for educational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider before starting any supplement.