Proof.Fit

Nutrient uptake

49 supplements analyzed and ranked by clinical evidence.

Supplements49

Supplement Evidence

Main Effects
Vitamin D

↑25(OH)D, ↓PTH

↑Ca absorption, ↓PTH

Strong
435919
Folic Acid

Homocysteine ↓32%

Betaine ↑38%

Strong
274515
Beta-Carotene

Uptake ↑ beta-carotene +10x

Retinol stores ↑ 6.6x

Strong
80713
Probiotics

More amino acid uptake

+B12/DHA/iron uptake

Strong
294215
Digestive Enzymes

Phytase: P +14–24pp

Digestive enzymes: uptake ↑

Strong
17077
Arginine

AA uptake +35%

Arginine levels rise

Nitrogen balance improves

Strong
125319
Vitamin C

↑ Iron absorption +2-5x

↑ Hb/ferritin

Strong
151318
Prebiotics

Iron absorption +45–51%

Calcium absorption +5–13%

Strong
76915
Nitrate

Nutrient uptake unchanged

Uptake ↑ flow

Uptake ↓ resistance

Strong
98412
Selenium

Selenium status ↑; uptake markers

Insulin/HOMA-IR ↓; uptake markers

Strong
69617
Vitamin E

Vitamin E uptake ↑

Fat-soluble uptake ↓

Strong
181517
Butyrate

Nutrient uptake ↑

Na+ absorption +

SCFA uptake ↑

Strong
251515
Phytosterols

Absorption↓; LDL↓

+13–47% uptake↓

Strong
30617
Colostrum

↑ IgG, uptake

↓ permeability, better absorption

↑ protein/AA, uptake

Strong
22217
Iodine

Better iodine uptake

Iron/vitamin status +

Strong
160217
Chromium

Glucose/insulin ↑ uptake

HbA1c/FBS ↓ uptake

TG/NEFA ↓ uptake

Strong
43411
Lactoferrin

Absorption +56%

Hb/ferritin ↑

Permeability ↓

Moderate
18815
Betaine HCL

Choline/betaine ↑ uptake

+plasma choline betaine

Better fat absorption

Moderate
1206
Lysine

Higher plasma Lys +13 AAs

Lower digestible Lys -31%

Moderate
36818
Riboflavin

Iron markers +9

+57 pp anemia

B2 status/iron stores

Moderate
32415
Copper

Iron uptake ↑, Cu-regulated

Hb/Fe status ↑, uptake

Absorption ↑ at 4-6:1

Moderate
64718
Vitamin B2

Iron status ↑

B2/Fe deficiencies ↓

Moderate
40015
Inulin

Ca absorption +8%

Vit D/markers

Isoflavones +38/+91%

Moderate
29112
ATP

ATP/flow ↑, lactate ↓

+60% ATP, -42% lactate

Moderate
76111
Aspartate

Amino acid absorption ↓

Mg/Zn absorption ↑

Moderate
201718
DMSO

Better uptake +85%

Occlusion/clearance 80–90%

Moderate
8712
Lecithin

Iron uptake +

Choline/DHA uptake +

Moderate
14213
Carnitine

Carnitine uptake +21%

Fat use -55%

Cord uptake enriched

Moderate
47518
Pantothenic Acid

↑ eggs/tissues

↓ blood B5 -85%

↑ plasma B5 +1250%

Moderate
585
Alanylglutamine

Absorption/barrier + glutamine

Nitrogen balance/weight +

Moderate
5412
Biotin

Biotin status ↑, deficiency markers ↓

Catabolites ↑; uptake ~100%

Moderate
657
Beta-Glucans

Bile acids ↑851 mg/d

LDL glucose ↓5–30%

Moderate
16818
Barley Grass

P,Ca uptake↑

Zn uptake↑

Moderate
5915
Citrulline

↑Arg/NO uptake

+1840 citrulline

Gut perfusion/ injury

Moderate
23013
Chitosan

Boosted uptake/absorption

Reduced iron uptake

Moderate
11618
Capsaicin

Feed efficiency +4.2%

Swallow safety PAS ↓

Substance P ↑

Moderate
24618
Piperine

Increased uptake +120%

Reduced ALT -8 U/L

Moderate
5118
Spirulina

Iron↓, Ca/Mg↔

Hb↑, anemia↓

Moderate
5518
Avocado

Carotenoid absorption +2.35x

Lutein status +25%

OxLDL βˆ’8.8%

Moderate
4716
Vitamin B7

Absorption/excretion ↑

+100% bioavailability

Deficiency markers ↓

Weak
7310
MCT Oil

Protein metabolism +

Cholestasis -18.2%

Weight gain +0.22

Weak
5311
Molybdenum

Copper uptake -82%

Copper status ↑

Weak
357
Fulvic Acid

Better uptake: ADG↑

Efficiency gain: FCR↓

Weak
22
Bee Pollen

Growth/FCR + sig

WBC +8%

Weak
25
Black Pepper

Carotenoids uptake +4.8x

Drug bioavailability +170%

Glucose/oxidative stress improved

Weak
3713
Caprylic Acid

Fat uptake +14.4%

LC-PUFA +57.1

Bioavailability 76-95%

Weak
346
L-Citrulline

AA availability +30-40%

Blood flow/FMD ↑

Weak
11711
Black Currant

Fast uptake, tiny excretion

Gut bacteria ↑, enzyme ↓

Weak
5113
Chicory Root

Fiber digestibility +

Microbiota shift, coliforms -

Weak
89