Evidence supporting the use of: Vitamin D (ergocalciferol)
For the health condition: Influenza

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin D (ergocalciferol) has attracted interest for its potential role in supporting immune function, including in the context of influenza. Several observational studies have shown that individuals with low vitamin D levels may have an increased susceptibility to respiratory infections, including influenza. The biological plausibility lies in vitamin D’s role in modulating innate and adaptive immune responses, such as enhancing the pathogen-fighting effects of monocytes and macrophages and decreasing inflammation. However, randomized controlled trials (RCTs) examining vitamin D supplementation specifically for prevention or treatment of influenza have yielded mixed results. Some studies suggest a modest reduction in the risk of acute respiratory infections with vitamin D supplementation, particularly in individuals who are deficient, but results are inconsistent when focusing specifically on influenza. Meta-analyses generally indicate a small protective effect against respiratory tract infections, but the evidence is not strong or specific enough to firmly recommend vitamin D as a treatment or preventive measure for influenza in the general population. Overall, while there is some scientific rationale and modest supportive evidence, the use of vitamin D (ergocalciferol) for influenza is not robustly validated by high-quality clinical trials. Current guidelines do not endorse vitamin D supplementation specifically for influenza prevention or treatment unless there is an underlying deficiency.

More about Vitamin D (ergocalciferol)
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Other ingredients used for Influenza

green chiretta
astragalus
myrobalan
benegut perilla (proprietary)
black garlic
black pepper
Indian frankincense
bupleurum falcatum
camu camu
catechins
caterpillar mushroom
chaga mushroom
Coptis chinensis
cordyceps
turmeric
dog rose
echinacea purpurea
elderberry
ginger
glehnia root
goldenseal
gooseberry
greek mountain tea
green tea
honeysuckle
L-cysteine
lactobacillus casei
lactoferrin
lactoperoxidase
lentinula edodes mycelia
licorice root
monolaurin
nettle
quercetin
reishi mushroom
selenium
spirulina
sweet wormwood
vitamin C
vitamin D
zhejiang fritillary
zinc
boneset
tangerine
alpinia galangal
myrrh
yerba santa
chrysanthemum
flowering quince
ganoderma
anemarrhena asphodeloides
eucalyptus
Abies spectabilis
Algae
Avens
Agarikon Mushroom
Apple Cider Vinegar
Agastache
Anamarrhena
Acacia
Agrimony
Allicin
Anamu
AHCC
Andrographolide
American Liverleaf
Astragaloside
Andrographis
Alsonia scholaris
Adenophora
Alliin
Asarum sieboldii
Bee Propolis
Black Seed
Baikal Skullcap
Bryonia
Balsam
Basidiomycota
Borage
Bupleurum
Baicalin
Black Hellebore
Balloon Flower
Clerodendrum trichotomum
coconut oil
Coriolus mushroom
Clerodendrum phlomidis
Carvacrol
Cineole
Centipeda
Cistus
Chaenomeles lagenaria
Currant
Chondrus
Ephedra
European Elder
Elk antler
Echinacea
Elder
Euphorbia
Embelia
Fat liver oil
Flavanones
Frankincense
Flavones
Glehnia littoralis
Guaco
Gallesia
Glycyrrhizin
Hyperoside
Houttuynia
Honey loquat syrup
Immunoglobulin G
iridoids
Lycium
Ledebouriella
Lomatium
Lichen
Lycopodium
Labrador Tea
Little ironweed
Liverwort
Meadow sage
Microtea debilis
Neoandrographolides
Onosma bracteatum
Osthole
Premna
Platycodon
Pelargonium
Pentatropis capensis
Polygonatum
Polygonum
Ravinsara
Sweet Annie
Salvia
Sambucus nigra
Sulfated polysaccharide
Shikimic Acid
Sweet Bay
Sundew
Tremella
Umckaloabo
Visnea Mocanera
Vasicine
Xanthophyll
Zingerone

Products containing Vitamin D (ergocalciferol)

We currently have no products on Vitabase that contain this ingredient.