Evidence supporting the use of: Walnut
For the body system: Male Reproductive System
Synopsis
Source of validity: Traditional
Rating (out of 5): 2
Walnuts (Juglans regia) have been used in various traditional systems of medicine, including Ayurveda and Traditional Chinese Medicine, as a food believed to support male reproductive health. In these systems, walnuts are often consumed to enhance vitality, increase sperm count, and improve sexual function. The shape of the walnut, which resembles the human testicle, also led to its association with male reproductive health in the doctrine of signatures—a historical belief that herbs resembling certain body parts could treat ailments of those parts.
Modern scientific evidence on the effects of walnuts specifically on the male reproductive system is limited but growing. Some small-scale clinical studies have shown that walnut supplementation may improve sperm vitality, motility, and morphology in healthy men, likely due to their high content of polyunsaturated fatty acids and antioxidants. However, these findings are preliminary, and the sample sizes are small. The traditional use of walnuts for male reproductive health is much more established than the scientific validation, which is why the evidence rating is moderate. More rigorous and larger-scale studies are needed to confirm these effects and to fully understand the mechanisms involved.
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aspartic acid
beta-sitosterol
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boron
broccoli
caterpillar mushroom
cordyceps
cowage seed
d-alpha tocopherol
damiana
DHEA (dehydroepiandrosterone)
DIM (diindolylmethane)
fenugreek
folate
ginseng
gokhru
L-arginine
L-citrulline
lycopene
maca
magnesium
Melatonin
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parsley
pomegranate
protein
pumpkin
pygeum
rehmannia glutinosa
saffron
saw palmetto
selenium
black ginger
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tribulus
velvet bean
vitamin B
vitamin D
vitamin E
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suma
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smilax
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lingzhi
cistanche
dodder
royal jelly
equol (proprietary)
trace minerals
barrenwort
wheat germ
herbal blend (proprietary)
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avocado
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Allium tuberosum
anti-aromatase
animal protein
black seed
Butea monosperma
black galingale
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Bulbine natalensis
Brazil nut
ba ji tian
Butea superba
bee products
Borassus aethiopum
Curculigo orchioides
Chinese mountain ant
Cucurbita
Cnidium
Clerodendrum phlomidis
Cynomorium
Chinese fleeceflower
Chinese pond turtle
Chlorophytum
cruciferous
Cyanotis vaga
catuaba
Crinum latifolium
Cyanotis arachnoides
DHEA
D-Aspartic Acid
deer velvet
date
eurycomanone
egg
Euryale seed
elk antler
Eurycoma Longifolia
folic acid
fo-ti
furostanols
fish
fatty acids
Fadogia agrestis
Ginsenosides
garden cress
Hygrophila
horny goat weed
Indian sarsparilla
icariin
Jatropha macrantha
Kigelia africana
Kokilaksha
Leptadenia
Loranthus
lipids
macamides
maral root
Massularia acuminata
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macaenes
Nigella seed
Nymphaea caerulea
Orchis latifolia
Osthole
Protodioscin
Pedalium
Rehmannia
Rhaponticum
Selenocysteine
Selenomethionine
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Semecarpus anacardium
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Tribuloside
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Tribulus Terrestris
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Yohimbine