Evidence supporting the use of: Vitamin D
For the health condition: Metabolic Syndrome

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Synopsis

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

Vitamin D has been investigated for its potential role in metabolic syndrome, a cluster of conditions that increase the risk of heart disease, stroke, and type 2 diabetes. Epidemiological studies have observed an association between low serum vitamin D levels and increased prevalence of metabolic syndrome and its components, such as insulin resistance, hypertension, dyslipidemia, and abdominal obesity. Mechanistically, vitamin D is thought to influence glucose metabolism and insulin sensitivity through its effects on pancreatic β-cell function and inflammation modulation.

However, while observational studies suggest a link, randomized controlled trials (RCTs) and meta-analyses provide more modest support. Some interventional studies have shown small improvements in insulin sensitivity or lipid profiles with vitamin D supplementation in deficient individuals, but the results are inconsistent. A 2017 meta-analysis published in Obesity Reviews reported a modest reduction in fasting glucose but no significant effect on other metabolic syndrome parameters. More recent reviews and large RCTs, such as the VITAL trial, have not found convincing evidence that vitamin D supplementation prevents or treats metabolic syndrome in the general population.

Overall, while there is a plausible biological rationale and some early evidence, the current weight of scientific evidence does not robustly support vitamin D supplementation as a treatment for metabolic syndrome unless deficiency is present. Ongoing research may clarify its role, particularly in populations with low baseline vitamin D levels.

More about vitamin D
More about Metabolic Syndrome

Other ingredients used for Metabolic Syndrome

1-deoxynojirimycin
12-methylcarnosic acid
15,16-Dihydrotanshinone I
3-desoxy-7-KETO-DHEA
4-hydroxyisoleucine
5,7-Dimethoxyflavone
6-Paradol
7-hydroxymatairesinol (HMR)
7-Keto-DHEA
Acacetin
Acai berry
Akkermansia muciniphila
Algae
algal oil
Algal protein
Alpha Glucans
Alpha methyl tetradecylthioacetic acid
Alpha phytosterol
alpha-glycosyl isoquercitrin
alpha-linolenic acid (ALA)
alpha-lipoic acid
AMP-activated protein kinase (AMPK)
ampelopsin
anchovies
ankaflavin
anthocyanidins
anthocyanins
antirrhinin
Antrodia camphorata
apigenin
arabinoxylan
Arjunolic acid
Aronia melanocarpa
Ascophyllum nodosum
asparagus
astragaloside
Auricularia
avocado
bacillus subtilis
banaba
barley
bean
berberine
beta-glucan
beta-hydroxybutyrate
beta-sitosterol
betanin
Bifidobacterium adolescentis
Bifidobacterium longum
black garlic
Blakeslea trispora
blueberry
Brazil nut
Brussel sprouts
butyrate triglyceride
Calanus finmarchicus
California chia
campesterol
camu camu
capsiate
capsinoids
cardarine
carnosic acid
caterpillar mushroom
charantin
chia seed
Chitin-Glucan Complex
chlorogenic acid
chokeberry
chromium
cinnamon
conjugated linoleic acid (CLA)
corosolic acid
crocetin
Crypthecodinium
curcumin
cyanidin
cyanobacteria
cynaropicrin
Cystoseira canariensis
D-Pinitol
DHA (docosahexaenoic acid)
dihydrocapsiate
dihydrolipoic acid
diosgenin
docosahexaenoic Acid
DPA (docosapentaenoic acid)
dragon fruit
Dunaliella
Ecklonia
epigallocatechin gallate (EGCG)
ergothioneine
evodiamine
fisetin
flavanols
flaxseed
Foxtail millet
fructan
fructooligosaccharides (FOS)
fucosterol
fucoxanthin
galactooligosaccharides
garbanzo bean
ginger
Ginsenosides
Glucan peptides
glucomannan
Glucoraphanin
Glucosinolates
guanidinopropionic acid (GPA )
guar gum
Guggulsterones
hydroxycitric acid
hydroxytyrosol
inulin
Irvingia gabonensis
Isoalantolactone
isomaltulose
Kamut
kidney beans
Konjac
krill oil
l-carnitine
Lactobacillus helveticus
Legume protein
Lentil
licorice root
lipstatin
lupin
maitake mushroom
mangiferin
maqui berry
Maslinic acid
Matcha
medium chain triglycerides (MCT)
Momordicosides
Monacolin
Monounsaturated fat
Moringa
Mulberroside A
Naringenin
Naringin
Neoeriocitrin
nicotinamide riboside
Nobiletin
oleanolic acid
oleic acid
Oleoylethanolamide
Oligosaccharides
olive
omega-3 fatty acids
omega-7 fatty acids
omega-9 fatty acids
oolong tea
oyster mushroom
Palatinose
palmitoleic acid
peanut
Phaeophyceae
phlorizin
Phycocyanin
Phytoplankton
Pinitol
Pistachio
Pleurotus eryngii
polychitosamine
Polydatin
polysaccharides
polyunsaturated fat
pu-er tea
punicalagins
punicalin
punicic acid
pyrroloquinoline quinone
quinoa
Rebaudioside
red yeast rice
reishi mushroom
resveratrol
rye
Salacia
Salidroside
Salmon Oil
Schizochytrium
Schizochytrium Oil
Sesamin
Sesamolin
Sinensetin
spirulina
Sulforaphane
Syringic acid
Tagatose
Tangeretin
Tanshinone
Tetradecylthioacetic acid
Theabrownin
Theaflavin
Thylakoid
tocotrienols
Trans-pterostilbene
turmeric
Tyrosol
Urolithin A
Vanadium
Vanadyl sulfate
vitamin C
vitamin D
wheat grass
Whey protein
Xanthohumol
xylooligosaccharides
Yacon
Zinc
β-nicotinamide mononucleotide (NMN)

Other health conditions supported by vitamin D

Allergies (food)
Alzheimer's Disease
Amenorrhea
Anorexia
Apathy
Arrhythmia
Arthritis
Autism
Autoimmune Disorders
Backache
Birth Defects (prevention)
Body Building
Broken Bones
Calcium Deficiency
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Celiac Disease
Chronic Obstructive Pulmonary Disorder
Colds (antiviral)
Colds (general)
Colds (prevention)
Colds (with fever)
Concentration (poor)
Concussions
Confusion
Congestive Heart Failure
Contagious Diseases
Convalescence
Convulsions
Cramps (menstrual)
Cramps and Spasms
Crohn's Disease
Cystic Breast Disease
Cystic Fibrosis
Dandruff
Debility
Dementia
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Erectile Dysfunction
Estrogen (low)
Fibroids (uterine)
Fibromyalgia Syndrome
Fibrosis
Grave's Disease
Grief and Sadness
Hair (loss or thinning)
Hair Care (general)
Hashimoto's Disease
Headache (cluster)
Heart (weakness)
Hypertension
Hypothyroid
Infection
Infection (bacterial)
Infection (viral)
Infertility
Inflammation
Inflammatory Bowel Disorders
Influenza
Injuries
Irritable Bowel Syndrome
Itching
Knees (weak)
Leaky Gut Syndrome
Leprosy
Lesions
Leukemia
Lou Gehrig's Disease
Lupus
Lymphoma
Melanoma
Memory and Brain Function
Menopause
Menstrual Irregularity
Mental Illness
Metabolic Syndrome
Migraine
Miscarriage (prevention)
Mood Swings
Multiple Sclerosis
Muscle Tone (lack of)
Muscular Dystrophy
Myasthenia Gravis
Nephritis
Nerve Damage
Nervous Exhaustion
Numbness
Nursing
Obsessive Compulsive Disorder
Oral Surgery
Osteoporosis
Pain (general remedies for)
Pancreatitis
Paralysis
Parkinson's Disease
Peripheral Neuropathy
PMS (general)
PMS Type D
PMS Type H
PMS Type P
PMS Type S
Pneumonia
Polyps
Post Partum Depression
Post Partum Weakness
Pregnancy (herbs and supplements for)
Progesterone (low)
Prostatitis
Psoriasis
Rheumatoid Arthritis
Schizophrenia
Sciatica
Seasonal Affective Disorder
Senility
Acne
Allergies (respiratory)
Arteriosclerosis
Asthma
Anemia
Cardiovascular Disease
Fatigue
Tuberculosis