Relationship: Free Radical Damage and selenium

Evidence supporting the use of: Selenium
For the health condition: Free Radical Damage

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Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Selenium is used to support or treat free radical damage based on substantial scientific validation. Selenium is an essential trace element that plays a critical role in the body’s antioxidant defense system. Its biological importance largely comes from its incorporation into selenoproteins, especially glutathione peroxidases and thioredoxin reductases, which are key antioxidant enzymes. These enzymes catalyze the reduction of harmful peroxides and protect cellular components from oxidative stress caused by free radicals. Numerous studies have shown that selenium deficiency can decrease the activity of these enzymes, leading to increased oxidative damage in tissues. Conversely, adequate selenium intake supports these enzymes’ function, enhancing the body’s ability to neutralize free radicals and limit cellular damage.

Clinical and epidemiological studies suggest that selenium supplementation may enhance antioxidant capacity, particularly in individuals with low baseline selenium levels. However, evidence that selenium supplementation prevents or treats diseases caused by oxidative damage, such as cancer or cardiovascular disease, is more mixed. Some meta-analyses indicate modest benefits, while others do not find significant effects in well-nourished populations. Despite this, the mechanistic and biochemical evidence supporting selenium’s role in protecting against free radical damage is robust. Therefore, the justification for selenium’s use in combating free radical damage is primarily scientific, with a high level of mechanistic and moderate clinical support (rated 4 out of 5).

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Other ingredients used for Free Radical Damage

1,2-di-galloyl-4,6hexahydroxydiphenoyl-D-glucose
3,3'-dihydroxy-B-carotene-4,4'-dione
3-Isomangostin
5,7-Dimethoxyflavone
7,4-Dimethoxyflavone
7-hydroxymatairesinol (HMR)
Acacetin
Acai berry
Acer truncatum
Acetyl L-carnitine
Algae
Algal protein
Allophycocyanin
Alpha-carotene
alpha-glycosyl isoquercitrin
alpha-lipoic acid
amentoflavone
amethoflavone
amino acids
ankaflavin
anthocyanidins
anthocyanins
anthocyanosides
antirrhinin
apigenin
apocarotenal
apocynin
apricot
arctiin
argan nut oil
Arjunolic acid
Aronia melanocarpa
ascorbigen
ascorbyl palmitate
astaxanthin
astragaloside
astragalus
Auricularia
Autumn Olive
avocado
baccosides
bacoside
baicalin
Basidiomycota
basil
bee pollen
benfotiamine
berry
beta-carotene
beta-hydroxybutyrate
beta-tocopherol
beta-zeacarotene
betanin
BHA (butylated hydroxyanisole)
BHT (butylated hydroxytoluene)
bilberry
bioflavonoids
black currant
black garlic
black tea
blackberry
blueberry
bok choy
boysenberry
Brassica
Brazil nut
broccoli
Brussel sprouts
C-phycocyanin
caffeic Acid
caffeine
Camellia sinensis
camu camu
canthaxanthin
capsanthin
capsorubin
carnosic acid
Carnosine
carnosol
carotene (unspecified)
cashew
catalase
catechins
caterpillar mushroom
cauliflower
chebulic acid
chebulinic acid
chocolate
chokeberry
chrysin
cichoric acid
cistanche
cocoa
coconut milk
coenzyme Q10 (CoQ10)
coffee fruit
crocetin
Crypthecodinium
cryptoxanthin
cupric ascorbate
dehydroascorbic acid
delphinidin
delta-tocopherol
desoxyrhaponticin
dibenzo-alpha pyrones
dihydrolipoic acid
diosmetin
dismutase
dragon fruit
Dumontiaceae
Dunaliella
Dunaliella salina
Ecklonia
ellagic acid
emblicanin
epicatechin
epigallocatechin gallate (EGCG)
ergothioneine
eriodictyol
erythorbic acid
ethylgallate
fatty acids
ferulic acid
fish protein
flavanones
flavans
flavin mononucleotide
flavoglycosides
flavones
flavonols
flavonones
fruit blend (proprietary)
fucoidan
fulvic acid
furanosterols
Gac
gamma-carotene
gamma-glutamylcysteine
ganoderma
Garcinone C
Garcinone E
ginseng
Ginsenosides
Glucan peptides
Glutathione
goji berry
grape
green tea
greens blend (proprietary)
guarana
Haematococcus pluvialis
hesperetin
hesperidin
HMR lignan
honeybush
hydroxycinnamic acid
hydroxyphenylethanols
hydroxytyrosol
Idebenone
isoascorbate
isovitexin
Jaboticaba
Kaempferol
kucha tea
L-carnosine
L-cysteine
L-glutathione
L-glycine
Lentinula edodes mycelia
Leucodelphinidin
lingzhi
lipids
lutein
Lycium
macadamia
malvidin
mangiferin
mangostanol
mangostene xanthone
Matcha
Mate
Melatonin
Methoxylated flavones
Methylselenocysteine
Mineral ascorbate
mixed carotenoids
Myricitrin
N-acetyl-cysteine (NAC)
N-Caffeoyldopamine
Neoandrographolides
Neoxanthin
nicotinamide riboside
Oligomeric proanthocyanidins
omega-3 fatty acids
oyster mushroom
papaya
Pecan
Pentacyclic triterpenoids
Pentose phosphate
phenolic compounds
Phosphate ascorbate
phospholipids
Phthalides
Phycocyanin
Phytoene
Phytofluene
Phytoplankton
pine bark
Plankton
Pleurotus eryngii
polymethoxylated flavones
polyphenols
polyporous mushroom
proanthocyanidins
procyanidin
procyanidol
propyl gallate
punicalagins
punicosides
Pycnogenol
pyrroloquinoline disodium salt
pyrroloquinoline quinone
quercetin
raspberry
reishi mushroom
resveratrol
rhammetin
Ribose-l-cysteine
robusta coffee
Rooibos
rosmarinic acid
royal jelly
Salidroside
Schisandrins
Scopoletin
selenium
Sesamolin
Shilajit
Silychristin
spirulina
Squalene
strawberry
Tangeretin
Taxifolin
Theaflavin
Tiliroside
Tremella
Trigalloyl glucose
turmeric
Tyrosol
ubiquinol
Uncaria
Vanillin
vegetable blend (proprietary)
Vestitol
vitamin C
vitamin E
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wheat germ
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Xanthone
Xanthophyll
Xylaria nigripes
Yumberry
Zinc

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Evidence supporting the use of: Selenium
For the health condition: Free Radical Damage

Table of Contents

Synopsis

Other ingredients used for Free Radical Damage

Other health conditions supported by selenium

Products containing selenium

Health Concerns

Brands

Evidence supporting the use of: SeleniumFor the health condition: Free Radical Damage

Table of Contents

Synopsis

Other ingredients used for Free Radical Damage

Other health conditions supported by selenium

Products containing selenium

Evidence supporting the use of: Selenium
For the health condition: Free Radical Damage