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Fennel: study protocols

7 study groups say how much Fennel participants took a day. These are the doses the studies gave. They are not a recommendation.

Fennel: what the research found →

Dose per serving from products

127 products in our catalogue print how much Fennel a serving holds.

Most common: 50 mg to 100 mg, 37% of 127 products.

Dose per servingProducts
10 mg or less
7
10 mg to 25 mg
13
25 mg to 50 mg
23
50 mg to 100 mg
47
100 mg to 250 mg
20
250 mg to 500 mg
14
over 500 mg
3

Dose per serving from research

7 study groups in 7 studies say how much Fennel participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 100 mg to 250 mg, 29% of 7 study groups.

Daily doseStudy groups
50 mg to 100 mg
1
100 mg to 250 mg
2
250 mg to 500 mg
1
500 mg to 1 g
0
1 g to 2.5 g
1
2.5 g to 5 g
0
5 g to 10 g
1
10 g to 25 g
1

Commonly used together

None of these 7 study groups took Fennel with anything else.

7 study groups

Study
[The Effect of Fennel Tea Drinking on Postoperative Gut Recovery after Gynecological Malignancies Operation]
2015 · tea group · Patients undergoing laparotomy for gynecological cancers
10 g—78
Effect of Foeniculum vulgare Mill. (fennel) on menopausal symptoms in postmenopausal women: a randomized, triple-blind, placebo-controlled trial
2017 · treatment · Postmenopausal women aged 45 to 60 years with menopausal symptoms
200 mg8 weeks45
The effect of fennel on pain quality, symptoms, and menstrual duration in primary dysmenorrhea
2014 · intervention group · female students with primary dysmenorrhea; age range not reported
180 mg90 days40
The effect of Fennel seed powder on estradiol levels, menopausal symptoms, and sexual desire in postmenopausal women
2020 · intervention group · Women aged 45–60 years who were postmenopausal
2 g8 weeks40
Efficacy of a Herbal Formulation Based on Foeniculum Vulgare in Oligo/Amenorrhea: A Randomized Clinical Trial
2020 · Fomentex group · Women aged 18–40 with oligomenorrhea or secondary amenorrhea
11.2 g——
Effect of sweet fennel seed extract capsule on knee pain in women with knee osteoarthritis
2020 · fennel · Women with knee osteoarthritis
400 mg2 weeks—
Fennel (Foeniculum vulgare) oral capsules improve endometrial thickness in infertile women following clomiphene citrate treatment
2025 · fennel capsules · Women aged 25–35 with infertility receiving clomiphene citrate treatment
60 mg——
Fennel: study protocols | supp.fit