Evidence supporting the use of: Vitamin B6
For the health condition: Fatigue
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
Vitamin B6 (pyridoxine) is essential for numerous enzymatic reactions in the body, particularly those involved in amino acid metabolism, neurotransmitter synthesis, and energy production. Fatigue can be a symptom of vitamin B6 deficiency, and supplementation is effective in reversing fatigue caused specifically by a deficiency. In clinical practice, B6 is sometimes used in multivitamin formulations aimed at improving general energy levels or combating fatigue, particularly in populations at risk for deficiency (such as the elderly, pregnant individuals, or those with malabsorption syndromes).
However, scientific evidence directly supporting the use of vitamin B6 supplementation to treat fatigue in otherwise healthy, non-deficient individuals is limited and inconsistent. Most studies show that B6 supplementation does not reduce fatigue unless a deficiency is present. Some small studies and anecdotal reports suggest a possible benefit in conditions such as premenstrual syndrome (PMS)-related fatigue, but large, well-controlled clinical trials are lacking.
In summary, the use of vitamin B6 to treat or support fatigue is scientifically justified only in the context of deficiency, with strong evidence for correcting fatigue in that scenario (evidence rating: 4-5). For general fatigue in the absence of deficiency, the evidence is weak (rating: 0-2), and routine supplementation is not widely supported by rigorous scientific data.
Other ingredients used for Fatigue
acai berryacetyl l-carnitine
adenosine 5-triphosphate disodium (ATP)
adrenal cortex
alfalfa
alpha d-ribofuranose
alpha-ketoglutarate (AKG)
amino acids
anthocyanins
apple
arjun tree
ashwagandha
asparagus
aspartic acid
astaxanthin
astragalus
waterhyssop
barley
beet
bergamot
berry flavor
beta-alanine
betel
bifidobacterium breve
black cumin
black garlic
sesame
black tea
bonito peptide
Indian frankincense
bovine heart
bovine kidney
bovine liver
bovine spleen
branched-chain amino acids
rice
bupleurum falcatum
burdock
caffeine
cat's claw
caterpillar mushroom
chaga mushroom
chen pi
chia seed
Chinese salvia root
chlorella
chokeberry
citrus sinensis (proprietary)
coenzyme Q10 (CoQ10)
coffee fruit
cordyceps
creatine monohydrate
turmeric
damiana
DHEA (dehydroepiandrosterone)
eleuthero
fennel
fenugreek
fish protein
folate
fruit and vegetable blend (proprietary)
fu ling
ginseng
gooseberry
gotu kola
greek mountain tea
green tea
guarana
guayusa
hibiscus
Indian tinospora
iron
knotweed
jujube
kudzu
l-5-methyltetrahydrofolate glucosamine salt (5-MTHF)
l-alanyl-l-glutamine
l-carnitine
l-cysteine
l-glycine
l-leucine
l-ornithine
l-taurine
l-tyrosine
l-valine
lactiplantibacillus plantarum
lactoferrin
lentinula edodes mycelia
lion's mane
liquid liver fractions
lychee
maca
magnesium
maitake mushroom
malic acid
maltodextrin
mango
mangosteen
marine lipid
matcha
melatonin
milk
moringa
muira puama
Acetyl-L-Tyrosine
nettle
nicotinamide riboside
spruce
oat
okra
omega-3 fatty acids
ophiopogon root
orange
ornithine alpha-ketoglutarate
oyster mushroom
pantothenic acid (vitamin B5)
parsley
peppermint oil
phellodendron amurense
plum fruit
pollen
polygala root
pomegranate
potassium
prebiotic blend (proprietary)
protein
prune
pyrroloquinoline disodium salt
quail egg
quercetin
quinoa
redcurrant
rehmannia glutinosa
reishi mushroom
relora® (proprietary)
rhodiola
riboflavin (vitamin B2)
rosemary
sardines
scrophularia root
shiitake mushroom
black ginger
spinach
spirulina
thiamin (vitamin B1)
tongkat ali
trimethylglycine (TMG)
triphala
almond fruit
turkey tail mushroom
ubiquinol
Urolithin A
vegetable and fruit blend (proprietary)
vegetable blend (proprietary)
velvet bean
vitamin B
vitamin B12
vitamin B6
vitamin C
vitamin D
seaweed
watercress
watermelon
wheat grass
whey protein
mulberry
whole adrenal glandular
yeast
β-nicotinamide mononucleotide (NMN)
sarsaparilla
suma
jiaogulan
oryza
tangerine
gastrodia
cardamom
atractylodes
nut grass
punarnava
smilax
tinospora cordifolia
rubia cordifolia
bee pollen
peony
lingzhi
morus
root tuber
silk tree
haliotis
amber
cistanche
dioscorea
dodder
ganoderma
lotus seed
morinda
electrolytes blend (proprietary)
dulse leaf
royal jelly
trace minerals
anemarrhena asphodeloides
purslane
fulvic acid
aster root
yerba mate
wheat germ
noni
wood betony
biota seed
nopal
goji berry
amaranth
millet seed
algae
cocoa
thyroid substance
ashitaba
soursop
sea salt
DMPX
1,3,7-Trimethylpurine-2,6-dione
5-methyltetrahydrofolate glucosamine
Aralia
Avens
Arjuna
akebia
Apple Cider Vinegar
Alpha polylactate
Antler
Arginine Creatine
Ardisia
Angelica
Antrodia camphorata
Arginine malate
Arginine aspartate
Achyranthes
Anamu
Autumn Olive
Albizia
Arginine orotate
AHCC
Aletris
Adrafinil
Agarwood
American Liverleaf
Alpha-Lipoic Acid
Astragaloside
Armillaria mellea
Alpha lactalbumin
Areca
Adzuki bean
Agrimonia pilosa
adenosine triphosphate (ATP)
Algal protein
Arjunic Acid
Adenophora
Allium tuberosum
Amor seco
Arisaema
Atractylone
Animal protein
Betony
Black Seed
Broussonetia
Beta-hydroxybutyrate
Breadnut
Blepharis
Beef
Beef liver
Big Quaking Grass
Bone Marrow
Baccosides
Basidiomycota
Black Gram
Bauhinia
Brahmi
Ba Ji Tian
black salt
Borassus Palm
Borassus aethiopum
Bacteria
Blue-Green Alage
banana
Baobab
BCAA
Bupleurum
bacoside
Baicalin
Bassia scoparia
Bignay
Boerhavia diffusa
Bottle gourd
Borneol
Bird's nest
Chia seed
Cumin
Camellia sinensis
Coconut
Centella triterpenes
Chinese Silkvine
Curry leaf
Cowpea
California chia
Cinnamomum
Clary sage
Cocarboxylase
Chinese Mountain Ant
Cyanobacteria
Catalpol
Coriolus mushroom
Codonopsis
Cactus
Cynomorium
Cyathula
Chinese Fleeceflower
Chinese Pond Turtle
Cereal grass
Chlorophytum
Chuchuhuasi
Cyclanthera pedata
Curcumen
Cymbopogon Martini
Cyanotis Vaga
Centella asiatica
Coca
Coconut Water
Chocolate
Chard
Chinese Ligustrum berry
Creatine
Chicken
Corktree
Chanterelle
Catuaba
C-Phycocyanin
Chondracanthus chamissoi
Chestnut
Costus
Cereus
Carthamus
cola nut
Canscora
Currant
Chondrus
DHEA
Dendrobium
Deer Root
Dodeca-2E, 4E-Dienoic Acid Isobutylamide
Dragon Fruit
Durian
Deer Velvet
Dong Quai
Dibenzo-alpha pyrones
Dragonhead
Devil's Club
Dolichos
Date
Dulse
D-Ribose
Dextrose
Duckweed
Ephedra
Erythropalum scandens
Eriocitrin
Eupolyphaga sinensis
Erodium cicutarium
Euryale seed
Ergothioneine
Elk antler
Emblicanin
Ecdysteroids
Elthyl-Alpha-Guanido-Methyl-Ethanoate
Euglena gracilis
Ephedrine
European-Five Finger Grass
European Hornbeam
Embelia
Ecklonia
Enokitake
Folic Acid
Finger-Leaf Morning Glory
Flammulina velutipes
glucose
Himalayan Salt
Ketone Salts
Lotus
Little ironweed
Molasses
Milk Protein
Mistletoe
Mimosa
Orchid
Prickly Pear Cactus
Quinoa Protein
Spikenard
Sumac
Sweet Orange alcohol
Wheat
yohimbine
Zucchini
Other health conditions supported by vitamin B6
AlcoholismAmenorrhea
Anemia
Anxiety
Anxiety Disorders
Anger (excessive)
Arthritis
Attention Deficit Disorder
Autism
Bell's Palsy
Burning Feet or Hands
Carpal Tunnel Syndrome
Chemotherapy (reducing side effects)
Depression
Diabetes
Dysmenorrhea
Emotional Sensitivity
Energy (lack of)
Epilepsy
Fatigue
Hair (loss or thinning)
Hair Care (general)
Hangover
Hashimoto's Disease
Hiccups
Hot Flashes
Infertility
Inflammation
Insomnia
Irritability
Kidney Stones
Liver Detoxification
Memory and Brain Function
Menopause
Menorrhagia
Menstrual Irregularity
Menstruation (scant)
Mental Illness
Migraine
Mood Swings
Morning Sickness
Nausea and Vomiting
Nerve Damage
Nervous Exhaustion
Nervousness
Neuralgia and Neuritis
Nightmares
Numbness
Obsessive Compulsive Disorder
PMS (general)
PMS Type A
PMS Type C
PMS Type D
PMS Type H
PMS Type P
PMS Type S
Post Partum Weakness
Pregnancy (herbs and supplements for)
Progesterone (low)
Rheumatoid Arthritis
Schizophrenia
Seborrhea
Seizures
Sleep (restless and disturbed)
Sore or Geographic Tongue
Stress
Thinking (cloudy)
Tics
TMJ
Tuberculosis
Twitching
Worry
Products containing vitamin B6
Thorne
5-Hydroxytryptophan
Designs For Health
5-HTP Supreme™
Designs For Health
5-HTP Synergy™
Designs For Health
Acnutrol™ capsules
Integrative Therapeutics
Active B-Complex
Vitabase
Active Man's Formula
Vitabase
Active Woman's Multi
Designs For Health
Adrenal Complex
Designs For Health
Adrenal Complex
Metagenics
Adrenogen
Designs For Health
Adrenotone™
Designs For Health
Adrenotone™
Metagenics
AdvaClear
Metagenics
AdvaClear
Thorne
Advanced Bone Support Oscap
Thorne
Advanced Nutrients Multivitamin
Designs For Health
Amino Acid Supreme™
Designs For Health
Amino Acid Synergy
Pure Encapsulations
Amino-NR
Pure Encapsulations
Amino Replete
Metagenics
Axis Endo™ Mango
Douglas Laboratories
B-Complex
Vitabase
B-Complex 100 mg Sustained Release
Thorne
B-Complex #12
Thorne
B-Complex #6
Pure Encapsulations
B-Complex Plus
Pure Encapsulations
B-Complex Plus
Designs For Health
B-Supreme
Designs For Health
B-Supreme
Pure Encapsulations
B6 Complex
Pure Encapsulations
B6 Complex
Thorne
Basic B Complex
Thorne
Basic Nutrients 2/Day Multivitamin
Thorne
Basic Prenatal Multivitamin
Pure Encapsulations
CarbCrave Complex
Thorne
Catalyte
Designs For Health
CatecholaCalm™
Metagenics
Ceralin® Forte
Vitabase
Cholesterol Support
Metagenics
Clear Change 10-Day Detox Program with UltraClear Plus Berry
Metagenics
Clear Change 10-Day Detox Program with UltraClear Plus pH
Metagenics
Clear Change 10-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics
Clear Change 10-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics
Clear Change 10-Day Detox Program with UltraClear Plus Vanilla
Metagenics
Clear Change 10-Day Detox Program with UltraClear RENEW Berry
Metagenics
Clear Change 10-Day Detox Program with UltraClear RENEW Chai
Metagenics
Clear Change 10-Day Detox Program with UltraClear RENEW Vanilla
Metagenics
Clear Change 28-Day Detox Program with UltraClear Plus Berry
Metagenics
Clear Change 28-Day Detox Program with UltraClear Plus pH Pineapple Banana
Metagenics
Clear Change 28-Day Detox Program with UltraClear Plus pH Vanilla
Metagenics
Clear Change 28-Day Detox Program with UltraClear Plus Pineapple Banana
Metagenics
Clear Change 28-Day Detox Program with UltraClear Plus Vanilla
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Berry
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Chai
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Vanilla
Metagenics
Clear Change Daily Essentials
Integrative Therapeutics
Clinical Nutrients HP
Metagenics
Collagenics®
Metagenics
Cortico-B5B6®
Designs For Health
CraveArrest™
Thorne
Craving and Stress Support Relora Plus
Integrative Therapeutics
Detoxication Factors
Designs For Health
DFH Complete Multi™
Designs For Health
DFH Complete Multi™ with Copper
Designs For Health
DFH Complete Multi™ with Copper & Iron
Designs For Health
DopaBoost™
Pure Encapsulations
DopaPlus
Integrative Therapeutics
EHB
Pure Encapsulations
Emotional Wellness
Pure Encapsulations
Emotional Wellness
Designs For Health
EndoTrim™
Metagenics
Endura® Lemonade
Pure Encapsulations
Energize Plus™ Pure Pack
Metagenics
EstroFactors®
Metagenics
Fem EstroPlex®
Metagenics
Fem Prenatal®
Designs For Health
FemGuard+Balance™
Thorne
Ferrasorb
Metagenics
Fibroplex®
Pure Encapsulations
Folate 5,000 Plus
Metagenics
GI Sustain™ Powder
Metagenics
Glutagenics
Integrative Therapeutics
Glycemic Manager
Metagenics
Glycogenics
Vitabase
Hair, Skin & Nails Formula
Vitabase
Healthy Sleep Support
Metagenics
Hemagenics
Metagenics
Hemagenics
Metagenics
HerSynergy®
Pure Encapsulations
Homocysteine Factors
Pure Encapsulations
Homocysteine Factors
Designs For Health
Homocysteine Supreme™
Designs For Health
Homocysteine Supreme™
Designs For Health
Insomnitol™ Capsules
Designs For Health
Insomnitol™ Chewables
Integrative Therapeutics
K-PAX MitoNutrients
Metagenics
Ketogenic Shake Chocolate
Metagenics
Ketogenic Shake Vanilla
Klean Athlete
Klean B-Complex
Klean Athlete
Klean Electrolytes ™
Klean Athlete
Klean Multivitamin ™
Pure Encapsulations
L-Tryptophan
Pure Encapsulations
L-Tryptophan
Douglas Laboratories
L-Tryptophan
Vitabase
Life's Essentials Plus
Metagenics
Lipo-Gen™
Metagenics
Lipo-Gen
Designs For Health
Liposomal B Supreme
Integrative Therapeutics
Lipotropic Complex
Pure Encapsulations
Lipotropic Detox
Pure Encapsulations
Liquid B-Complex
Pure Encapsulations
Liquid Magnesium
Douglas Laboratories
Liquid Multivitamin
Pure Encapsulations
LiquiNutrients
Designs For Health
LV-GB Complex™
Thorne
MediClear Plus
Thorne
Men's Multi 50+
Designs For Health
Metabolic Synergy™
Designs For Health
Metabolic Synergy™
Metagenics
MetaGlycemX™
Metagenics
MetaGlycemX
Metagenics
MetaKids Multi Soft Chew Grape
Metagenics
MetaKids Nutrition Powder Chocolate
Metagenics
MetaKids Nutrition Powder Vanilla
Metagenics
MetaRelax®
Thorne
Methyl-Guard
Thorne
Methyl-Guard Plus
Pure Encapsulations
MethylAssist
Metagenics
MethylCare
Designs For Health
Mitochondrial NRG™
Metagenics
MitoVive
Pure Encapsulations
MotilPro
Pure Encapsulations
Multi t/d
Pure Encapsulations
Multi t/d
Thorne
Multi-Vitamin Elite NSF
Thorne
Multi-Vitamin Elite NSF
Metagenics
Multigenics®
Metagenics
Multigenics Chewable Orange
Metagenics
Multigenics Intensive Care
Metagenics
Multigenics Intensive Care without Iron
Metagenics
Multigenics without Iron
Integrative Therapeutics
Multiplex-1 No-Iron
Designs For Health
NeuroCalm™
Designs For Health
Neurolink™
Pure Encapsulations
NeuroMood Pure Pack
Pure Encapsulations
NeuroPure
Designs For Health
NeuroRenew™
Pure Encapsulations
Nutrient 950®
Pure Encapsulations
Nutrient 950®
Pure Encapsulations
Nutrient 950®
Pure Encapsulations
Nutrient 950® A without Copper & Iron
Pure Encapsulations
Nutrient 950® with NAC
Pure Encapsulations
Nutrient 950® with Vitamin K
Pure Encapsulations
Nutrient 950® without Copper, Iron & Iodine
Pure Encapsulations
Nutrient 950® without Iron
Pure Encapsulations
Nutrient 950® without Iron
Integrative Therapeutics
Nutrivitamin No-Iron
Pure Encapsulations
O.N.E.™ Multivitamin
Pure Encapsulations
O.N.E.™ Multivitamin
Pure Encapsulations
O.N.E.™ Multivitamin
Designs For Health
OcuForce™
Integrative Therapeutics
Osteoprime Forte
Integrative Therapeutics
Osteoprime Ultra
Designs For Health
P-5-P
Pure Encapsulations
P-5-P 50
Pure Encapsulations
P-5-P 50
Designs For Health
PaleoCleanse Plus™
Designs For Health
PaleoCleanse Plus™
Designs For Health
PaleoCleanse Plus™ Detox Program
Designs For Health
PaleoCleanse Plus™Chocolate Detox Kit
Designs For Health
PaleoMeal®
Designs For Health
PaleoMeal®
Integrative Therapeutics
Physicians Elemental Diet Dextrose Free
Integrative Therapeutics
Physician's Elemental Diet
Integrative Therapeutics
Physician's Elemental Diet
Integrative Therapeutics
Physicians Elemental Diet Kit
Metagenics
PhytoMulti™ Multivitamin
Metagenics
PhytoMulti With Iron
Metagenics
PhytoMulti Without Iron
Metagenics
PhytoMultivitamin
Designs For Health
Plant Protein Cleanse
Designs For Health
Plant Protein Cleanse Plus™ 570g
Designs For Health
Plant Protein Meal
Designs For Health
Plant Protein Meal Plus
Designs For Health
Plant Protein Meal
Metagenics
PlusOne® Daily Prenatal Packs
Pure Encapsulations
Polyphenol Nutrients
Pure Encapsulations
Polyphenol Nutrients
Douglas Laboratories
Prenatal
Pure Encapsulations
PreNatal Nutrients
Pure Encapsulations
PreNatal Nutrients
Designs For Health
Prenatal Pro™
Designs For Health
Primal Multi™
Vitabase
Prostate Complex (Formerly Prostate Complete)
Designs For Health
Prostate Supreme™
Designs For Health
Prostate Supreme™
Integrative Therapeutics
ProThrivers Multivitamin
Pure Encapsulations
PureGenomics® B-Complex
Pure Encapsulations
PureGenomics® UltraMultivitamin
Pure Encapsulations
PureLean® Protein
Pure Encapsulations
PurePals
Pure Encapsulations
PurePals with Iron
Pure Encapsulations
PureResponse™ Multivitamin
Thorne
Pyridoxal 5 Phosphate B6
Pure Encapsulations
Rapid Calm
Vitabase
Relaxation Support
Douglas Laboratories
Relora ®-Plex
Metagenics
Renagen™ DTX
Pure Encapsulations
RevitalAge™ Nerve
Designs For Health
S-Acetyl Glutathione Synergy
Designs For Health
SAMe
Designs For Health
SAMe
Pure Encapsulations
SeroPlus
Metagenics
SeroSyn
Thorne
Stress B-Complex
Douglas Laboratories
Stress-B-Plus ™
Thorne
Stress Balance Phytisone
Designs For Health
StressArrest™
Vitabase
Super Antioxidant Formula
Vitabase
Super Fat Burner
Vitabase
Super Stress Formula
Metagenics
Testralin®
Metagenics
Trancor®
Designs For Health
Twice Daily Essential Packets
Designs For Health
Twice Daily Multi™
Designs For Health
Twice Daily Multi™
Designs For Health
Twice Daily Multi™
Douglas Laboratories
Ultra B-Complex
Pure Encapsulations
Ultra B-Complex with PQQ
Douglas Laboratories
Ultra Benfotiamine
Metagenics
Ultra Glucose Control® Chocolate
Metagenics
Ultra Glucose Control Chocolate
Metagenics
Ultra Glucose Control Vanilla
Metagenics
Ultra Glucose Control Vanilla
Douglas Laboratories
Ultra Preventive
Douglas Laboratories
Ultra Preventive
Douglas Laboratories
Ultra Preventive ® 2 Daily
Douglas Laboratories
Ultra Preventive 50+ -EZ Swallow
Douglas Laboratories
Ultra Preventive ®-EZ Swallow
Douglas Laboratories
ULTRA PREVENTIVE® III W/COPPER
Douglas Laboratories
Ultra Preventive One Daily
Douglas Laboratories
Ultra Preventive® X
Metagenics
Ultra Prostagen Concentrated
Douglas Laboratories
Ultra Protein Green
Pure Encapsulations
Ultra Pure Pack
Metagenics
UltraClear Detox Powder
Metagenics
UltraClear Plus® Detox Powder
Metagenics
UltraClear Plus Detox Powder Berry
Metagenics
UltraClear Plus Detox Powder Pineapple/Banana
Metagenics
UltraClear Plus pH Detox Powder Pineapple/Banana
Metagenics
UltraClear Plus pH Detox Powder Vanilla
Metagenics
UltraClear RENEW Detox Powder Berry
Metagenics
UltraClear RENEW Detox Powder Chai
Metagenics
UltraClear RENEW Detox Powder Vanilla
Pure Encapsulations
UltraDetox 10-Day Pure Pack
Metagenics
UltraGI Replenish® Chocolate
Metagenics
UltraGI Replenish Chocolate
Metagenics
UltraGI Replenish Vanilla
Metagenics
UltraGI Replenish Vanilla
Metagenics
UltraInflamX Plus 360°® Chocolate/Orange
Metagenics
UltraInflamX Plus 360° Mango
Metagenics
UltraInflamX Plus 360° Mango
Metagenics
UltraInflamX Plus 360° Orange
Metagenics
UltraInflamX Plus 360° Original Spice
Metagenics
UltraInflamX Plus 360° Pineapple/Banana
Metagenics
UltraInflamX Plus 360° Pineapple/Banana
Metagenics
UltraMeal Advanced Protein® Dutch Chocolate
Metagenics
UltraMeal Advanced Protein French Vanilla
Metagenics
UltraMeal Advanced Protein Plain
Metagenics
UltraMeal Cardio 360°® Pea/Rice Chocolate
Metagenics
UltraMeal Cardio 360° Pea/Rice Vanilla
Metagenics
UltraMeal® Daily Support Dutch Chocolate
Metagenics
UltraMeal Daily Support Mixed Berry
Metagenics
UltraMeal Rice Vanilla
Pure Encapsulations
UltraNutrient®
Pure Encapsulations
UltraNutrient®
Pure Encapsulations
UltraNutrient®
Douglas Laboratories
Uro-Pro ®
Designs For Health
UT Synergy™
Pure Encapsulations
VisionPro Nutrients
Designs For Health
Vitamin B-6 Liquid
Designs For Health
Weight Loss Support Packets
Metagenics
Wellness Essentials Active Daily Packs
Metagenics
Wellness Essentials Brain Health Daily Packs
Metagenics
Wellness Essentials® Daily Packs
Metagenics
Wellness Essentials Healthy Balance Daily Packs
Metagenics
Wellness Essentials Men's Vitality Daily Packs
Metagenics
Wellness Essentials Women's Daily Packs
Metagenics
Wellness Essentials Women's Prime Daily Packs
Thorne
Women's Multi 50+
Pure Encapsulations
Women's Nutrients
Pure Encapsulations
Women's Nutrients
Designs For Health
Women's Twice Daily Essential Packets
Designs For Health
Zinc Supreme™