Proof.Fit

Metabolism

162 supplements analyzed and ranked by clinical evidence.

Supplements162

Supplement Evidence

Main Effects
Fiber

Glycemia/lipids/inflammation

Weight/fat/insulin

Strong
364513
Alpha-Linolenic Acid

ALA↑ EPA↑

DHA↓ glucose↓

Weight↓ lipids↓

Strong
31119
Vitamin B6

Homocysteine↓, B6↑

Folate/methylation↑, homocysteine↓

Strong
54417
Zinc

Zinc↓ ALT/GGT, waist

Phytate↓ zinc absorption

Strong
180417
Alanine

Alanine↓ ketogenesis↑

Glucose/urea↑ alanine↓

ALT↓ liver metabolism

Strong
302818
Aspartate

Amino acids ↑/↓ metabolism

Liver lipids/glucose ↓

Strong
201718
Sodium Bicarbonate

Metabolic clearance: 68%↓

Buffering: HCO3-/pH↑

Strong
55810
Arachidonic Acid

AA↓/EPA↑ lipids

TG↓ HDL↑

Strong
59519
Potassium

Alkali↑ citrate/pH

K↓ calciuria

Strong
319717
Essential Amino Acids

AA uptake↑ / glucose↔

L-Arg/Leu metabolism↑

Liver fat↓ insulin↑

Strong
262919
Niacin

HDL↑ TG↓ LDL↓

Glucose↑ insulin resistance↓

Strong
30813
Phenylalanine

Phenylalanine↓ fat oxidation↑

Protein balance↑ Phe flux↓

Strong
110316
Iodine

thyroid: TG↑ fT3↓

iodine status: UIC↑ Tg↓

Strong
160217
L-Carnitine

Nerve pain +39%

Insulin resistance -48%

Liver enzymes -71%

Strong
46519
Inositol

Insulin resistance ↓

Glycemia/lipids ↓

Strong
27017
Whey Protein

↓HOMA-IR, ↓glucose

↑insulin, ↑GLP-1

Strong
66217
Phytosterols

LDL/TG ↓

Glucose ↓ +10%

Strong
30617
Choline

Methylation/homocysteine: -29%

Fatty liver/oxidation

Strong
76218
Chromium

Glycemia/insulin ↓

Lipids/body fat ↓

Inflammation ↓

Strong
43411
Arginine

Metabolism: glucose↓, insulin↑

Metabolism: arginine↓/fat↓

Metabolism: fatty liver↓

Strong
125319
Beta-Glucans

Lipid lowering: LDL/TC ↓

Glucose lowering: GI/AUC ↓

Inflammation/barrier: IL-6/TAG ↓

Strong
16818
Lysine

Fat loss/waist −

Glucose/insulin shift +

Lysine metabolism changes

Strong
36818
Butyrate

↑ Butyrate, glucose

↓ HbA1c / insulin

Strong
251515
Alpha-Lipoic Acid

Glucose/IR ↓

Lipids/Weight ↓

Liver enzymes ↓

Strong
21217
Berberine

Lipids/Glucose ↓

Liver fat/ALT ↓

Insulin resistance ↓

Strong
9916
Magnesium

Insulin/glucose ↓

Lipids/BP ↓

Metabolism +Mg

Strong
183419
Glutamine

Glucose/insulin control

−20% infections

Fat/lipolysis ↓

Strong
48516
Coenzyme Q10

Lipids ↓; HDL↑

Glucose/insulin ↓; HbA1c↓

Strong
34817
Carnitine

Fat mobilization +ketones

Carbs→fat shift +21%

Insulin resistance −0.6 HOMA

Strong
47518
Inulin

Glucose/insulin ↓

Weight/lipids ↓

Strong
29112
L-Methionine

Lipids ↑ with methionine

Homocysteine ↑; vessel function ↓

Methionine restriction: fat loss

Strong
34317
Bitter Orange

Metabolism +6.9–57%

Lipids/glucose −41%

+7 mmHg? no

Strong
25113
L-Serine

Serine/glycine metabolism

Lipid/BCAA shifts

Strong
73717
Leucine

Glucose/insulin ↓

Liver fat/IR ↓

Strong
39217
Vitamin B2

Folate/tHcy shift

Riboflavin status +83%

Strong
40015
Betaine

Betaine↑, Hcy↓

Betaine ↔ glucose

Strong
11816
Copper

Copper uptake ↓

Liver copper ↓

+20% absorption

Strong
64718
L-Histidine

Carnosine: +37–47%

Insulin resistance: −1.09

ImP: −39.9%

Strong
15916
Isoleucine

Glucose/insulin: -14%

BCAA/isoleucine: ↓

BP: -4 mmHg

Strong
8613
Resveratrol

↓ glucose/IR

↓ weight/lipids

Strong
17619
Betaine HCL

Homocysteine ↓ betaine

Body fat ↓

Strong
1206
Beef Protein

Lipids: LDL↓ 8–10%

Insulin/glucose: mixed↑↓

Blood pressure: ~4–7 mmHg↓

Strong
24912
Vitamin K

Vitamin K lowers glucose/insulin

Vitamin K lowers inflammation

Strong
66214
Ginger

Glucose↓, HOMA-IR↓

Lipids↓, TG−15%

Strong
23618
Green Tea Extract

Fat burning ↑

Glucose/weight ↓

EE +3-15%

Strong
24417
Ornithine

Polyamine depletion: -60.8%

Tumor prevention: -70%

Moderate
11514
Vitamin B1

B1 status ↑

Metabolism markers ↓

Moderate
26717
Propolis

Metabolism: glucose/insulin ↓

Metabolism: lipids/fat ↓

Moderate
9516
Pomegranate

Liver enzymes↓ TAC↑

Lipids/glucose↓ inflammation↓

Moderate
10416
Caffeine

Fat oxidation + EE

CYP1A2 metabolism -32%

AUC/clearance changes

Moderate
73611
Multivitamin

B-vitamin/homocysteine ↓

Weight/lipids/inflammation ↓

Moderate
45018
Psyllium

Weight/lipids ↓

Glucose/insulin ↓

Moderate
9712
Barley Grass

Glucose/insulin ↓, fiber + fermentation

LDL/total cholesterol ↓ ~10-15%

Moderate
5915
Akkermansia muciniphila

Weight/insulin ↓

Lipids/LPS ↓

Moderate
3614
Piperine

Lipids/glucose ↓

Weight/IR ↓

Moderate
5118
Epigallocatechin Gallate

↑EE/fat oxidation

+10% fat oxidation

Moderate
10919
Ephedrine

Weight loss +3.4 kg

Metabolic rate +10.7%

Body fat -6%

Moderate
56213
Alanylglutamine

Glucose/insulin control

Nitrogen balance + survival

Moderate
5412
Cinnamon

Lower glucose/insulin

Lipid & liver benefits

Moderate
6114
Chlorogenic Acid

Glucose/IR improved −27%

Lipids/fat mass down

Moderate
4616
Panax Ginseng

Glucose↓ insulin sensitivity↑

HbA1c↓ lipids↓

TG↓ VO2↓

Moderate
21518
Black Seed Oil

Metabolic health: weight/glucose/lipids

Inflammation & liver fat

Moderate
4915
Quercetin

Lipids/fat oxidation

+45% MFO

Insulin/androgens/adipokines

Moderate
14219
Milk Thistle

Glucose/insulin ↓, HOMA-IR ↓

Lipids ↓, HDL ↑

Moderate
5114
Hibiscus

Lipids ↓, glucose ↓

Weight/BP ↓, lipids ↓

Moderate
3413
Carnosine

Acidosis buffer: +32%, -23%

Glucose control: -1.6 mmol/L

Exercise capacity: +23% TTE

Moderate
7717
Lupin

Lipids: LDL/TC −4%

Glycemia: GI/glucose ↓

Moderate
20312
Lycopene

Liver lipids ↓

Inflammation markers ↓

Moderate
19618
Avocado

Lipids ↓ TG -20%

Glucose/insulin ↓ -13.6%

Moderate
4716
Theobromine

Lipids/waist improved

NASH histology/enzymes improved

Moderate
29412
Ellagic Acid

Lipids/liver enzymes -28 ALT

Glucose/insulin resistance

Moderate
2515
Conjugated Linoleic Acid

Higher energy use; +12%

More lean mass; +6%

Less fat synthesis

Moderate
11014
Bergamot

Liver fat −11.2%

Lipids/glucose ↓

Moderate
3515
Astaxanthin

Lipids/adiponectin

+HDL -TG

Glucose/insulin resistance

Moderate
5617
White Mulberry

Glucose/insulin spikes

−50% iAUC

Fasting glucose/HbA1c

Moderate
1210
Bitter Melon

Glucose control -15%

Insulin secretion +577.9

Moderate
107
Beta-Sitosterol

Glucose uptake ↓

LDL/sterols ↓

Moderate
6711
Gamboge

Lipid lowering: TC/LDL/TG

Insulin/glucose improved; weight ↓

Moderate
2710
Pea Protein

Glucose/insulin ↓, 57%

Satiety/GLP-1 ↑

HbA1c ↓ 0.12%

Moderate
4514
Sage

BMI, insulin ↓

TG, MDA ↓

Moderate
52116
Alfalfa

Glucose, insulin shifts

Nitrogen partitioning changes

Moderate
10811
Acetyl-L-Carnitine

Carnitine shifts fuel use

+30 mtDNA / flexibility

Insulin/ammonia improved

Moderate
9017
Jiaogulan

Weight/fat ↓; glucose/IR ↓

+4% cycling performance

Moderate
88
Biotin

Biotin turnover +69%

Blood biotin +51%

Triglycerides/VLDL ↓

Moderate
657
Terminalia Arjuna

Lipids down, TBARS −29.3%

Endothelial function, nitric oxide

Moderate
3315
White Kidney Bean

Glucose control −34%

Weight/fat loss −4.5kg

Lipids ↓LDL −8%

Moderate
510
Fucoxanthin

Liver fat/ALT/HOMA-IR ↓

Weight/TG/insulin ↓

Moderate
512
Glucomannan

Lipids, glucose −22%

Weight/fat loss ~4kg

Moderate
3212
Capsaicin

Fat oxidation +RQ↓

Thermogenesis/BAT +5%

Catecholamines/lactate↑

Moderate
24618
Licorice

Glucose/liver improved

Fat loss

Moderate
7815
MCT Oil

Metabolism: ↑ ketones, ↑ fat oxidation

Metabolism: ↓ TG, better balance

Moderate
5311
Yerba Mate

Fat oxidation +23-28%

Glucose/lipids -25 mg/dL

Moderate
139
Vitamin B12

Insulin resistance +26.7%

HbA1c −1.2%

Lactate/ammonia ↓

Moderate
95115
S-Adenosyl Methionine

SAM/methylation preserved

Homocysteine shifted

Moderate
8214
Krill Oil

Lipid lowering: TG/LDL

Glycemia: HbA1c↓

TG -10.9%

Moderate
3815
NADH

NAD boost; glycemia/insulin

Metabolic markers; weight/BP

Moderate
15716
Urolithin A

Glucose ↓2 mg/dL

VAT −14.1%

Moderate
1517
ATP

ATP synthesis ↑

Glucose/fat shift

Moderate
76111
Amla

Lipid lowering −34% TG

Oxidative stress/LDL ↓21%

Glucose/body fat modest

Moderate
2913
Ecklonia Cava

Body fat/lipids ↓

Post-meal glucose ↓

Urine metabolites ↑

Moderate
36
Beef Liver

Fat loss/liver fat -4.89%

LDL/genes up-down

Iron transport -DMT1

Moderate
4511
Mangosteen

Weight/waist −5kg

Glucose/lipids ↓

Moderate
1510
Red Yeast Rice

Cholesterol lowering (-49 mg/dL)

Insulin/glucose improvement

Blood pressure drop (-10 mmHg)

Moderate
6814
Chlorella

Lipids −10%

Glucose/inflammation down

Moderate
1812
Sulforaphane

Lower HOMA-IR, glucose

GLP-1/gut bacteria +SCFAs

Fasting glucose -0.2 mmol/L

Moderate
4214
Allulose

↓Glucose/insulin (~8%)

↑Fat oxidation

Moderate
54
Vitamin B5

Lipids down: LDL/TC

B5 up, eye AEs

Moderate
708
Kelp

Lower insulin/glucose -12.1%

Improved sensitivity/HbA1c

Moderate
4812
Rutin

Weight/fat ↓, FFM ↑

Glucose/lipids/inflammation improved

Moderate
8613
Myricetin

Glucose/insulin ↓ -27%

Lipids/oxidative stress ↓ -15%

Weak
49
Vitamin B7

Carboxylases ↑ biotin status

Lipids ↓ ~0.5-0.9

Growth/FPD improved

Weak
7310
Cissus Quadrangularis

Weight/fat loss −7.4kg

Glucose/GLP-1 changes

Weak
74
Caprylic Acid

Fat ox. +90.9 mg

+Ketones +10.5

Weak
346
Fenugreek

Glucose control ↓; HbA1c

Lipids ↓; insulin resistance ↓

Urinary glucose −54%

Weak
3213
Cornelian Cherry

Weight/waist ↓

Glucose/lipids improved

Weak
57
Cinchona

Weight/fat loss -11.4%

Satiety/CCK maintained

Weak
95
Borage Oil

Weight regain -6.6kg

Lipids/BP improved

Weak
168
Chia Seeds

Weight/waist/CRP ↓

TG/DBP ↓

Weak
118
Dihydromyricetin

Lower glucose, LDL

↓ glucose, insulin resistance

Weak
25
Moringa

Lipids/BMI ↓

Glucose/HbA1c ↓

Weak
2512
Bladderwrack

Lower glucose, HbA1c

Reduced insulin resistance

Weak
73
Andrographis Paniculata

Triglycerides −41.6 mg/dL

Glucose/BMI lower

Weak
169
Royal Jelly

Glycemic/insulin shift: −1.62% HbA1c

Blood/testosterone rise: +RBC, +T

Weak
2712
Mannose

Fat/volume ↓ +2.7kg

Adipose tissue ↓

Weak
757
Gymnema Sylvestre

Glucose control: -0.4% HbA1c

Weight/lipids: -3.4 kg

Weak
106
Yacon

↓ weight, insulin resistance

↑ satiety, bowel freq

Weak
44
Fulvic Acid

Faster growth, better efficiency

Days to market ↓

Weak
22
Manganese

Mn absorption ↑2.3x

Fat/oxidation ↓, MnSOD ↑

Weak
8714
Coptis

Weight -1.7kg

Insulin resistance improved

Weak
913
Noni

Lipid lowering: -20–41%

Inflammation/homocysteine: -15–24%

Weak
76
D-Limonene

↓ inflammation; glucose/insulin

fibrinogen, HOMA-IR ↓

Weak
135
Agmatine

eGFR preserved +1.9

spermidine/aguA up

Weak
53
Black Ginger

Triglycerides -31%

Cholesterol, glucose down

Weak
86
Ursolic Acid

Mitochondria +7.4s gait

Glucose/weight improved; remission 50%

Weak
56
Neem

Lower glucose/IR

Better vessel function

Weak
1913
Desiccated Thyroid

T3↑, T4↓

QoL similar; symptomatic↑

Weak
97
Black Currant

Fat oxidation +25–29%

Postprandial glucose/insulin ↓

Weak
5113
Goji Berry

PPEE +10%, waist -5.5cm

Postprandial glucose -7.86%

Insulin response, HDL up

Weak
1917
Policosanol

↓ BP, ↓ HbA1c

↑ HDL, +6.3%

Weak
6512
Grains of Paradise

Metabolism ↑, fat ↓

+18.6% energy; -16.6 cm² visceral fat

Weak
17
Fumaric Acid

Cholesterol/ApoB down

FMD unchanged

Weak
367
Asafoetida

BMI ↓

Oxidative stress ↓

Sexual function ↑

Weak
39
Green Coffee Extract

BP/glucose/IR ↓

Weight/fat/LDL ↓

Weak
148
Guggul

Lipids ↓12%

Oxidative markers ↓33%

Weak
73
Cordyceps

ALT/AST down

Fibrosis -52%

Weak
216
Fisetin

↓ asprosin, MCP-1

↑ adiponectin +4.4

Weak
44
Kombucha

LAP -8.7; IL-6 blunted

Oral microbiota diversity shifted

Weak
36
Synephrine

Fat burn ↑

Stress hormones ↑

RMR ↑

Weak
32
Kaempferol

Lipid lowering: TG -15%

Lower glucose/insulin AUC

Weak
1311
Vanadium

Lower glucose, HbA1c

↓MAPK/PTP1B/NFκB expression

Weak
116
Chlorophyll

Weight −5.0 kg

GLP‑1↑, LDL↓

Weak
1310
GlyNAC

GSH restored, oxidative stress↓

Mitochondrial oxidation↑

Weak
16
Molybdenum

HDL +24.5%

Triglycerides -28.1%; PYY +56.2%

Weak
357
Chicory Root

Butyrate +17.4%

Insulin sensitivity, triglycerides down

Weak
89
Matcha

Fat oxidation +13–24%

RER -0.02 to -0.03

Weight/glucose down

Weak
1113
Sesamin

20-HETE↓ ~30%

Blood pressure unchanged

Weak
78
Thiamine

Thiamine status +2.6x

Glucose/insulin −11%

Weak
20515
Rose Hip

Insulin ↓; glucose ~same

LDL −6%; BP ↓4

Weak
5210
Acai Berry

Lipid shift, HDL +11%

Epigenetic/antioxidant boost

Weak
68
Camu Camu

Liver fat −15.85%

Liver enzymes improved

Weak
562
Coleus Forskohlii

Insulin resistance ↓36%

HDL-C ↑33%

Weak
22
Forskolin

Fat loss, +16.8% T

Higher free testosterone

Weak
137