Side-by-Side Comparison
Essential Vitamins & Minerals
Vitamin B7 (Biotin / Vitamin H) vs. Vitamin D3 (Cholecalciferol)
Comparing 2 standards across 10 specifications. 10 key differences identified.
Comparing:
Vitamin B7 (Biotin / Vitamin H)
Vitamin D3 (Cholecalciferol)
Vitamin B7 is an essential sulfur-containing water-soluble vitamin serving as a prosthetic group for five carboxylase enzymes in gluconeogenesis, lipogenesis, and branched-chain amino acid catabolism. Adequate Intake (AI) is 30 µg/day (no Upper Limit established).
Vitamin D3 is a secosteroid prohormone synthesized endogenously in skin via solar UVB irradiation of 7-dehydrocholesterol. Adult RDA is 600–800 IU (15–20µg), with a Tolerable Upper Limit of 4,000 IU (100µg)/day, regulating systemic calcium absorption and immune gene expression.
Specification Comparison Table
10 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nutrient Type
|
Water-Soluble Ureido-Tetrahydrothiophene Vitamin | Fat-Soluble Secosteroid Prohormone |
|
Tolerable Upper Limit (UL)
|
None Established (No adverse effects recorded) | 4,000 IU / day (100 µg) (Endocrine Society: up to 10,000 IU safe) |
|
Chemical Forms
|
D-Biotin (Biologically active isomer), Biocytin (Biotinyl-lysine) | Cholecalciferol (D3 - Animal/Lichen), Ergocalciferol (D2 - Fungi) |
|
Primary Biological Function
|
Prosthetic group for Pyruvate Carboxylase (Gluconeogenesis), Acetyl-CoA Carboxylase (Fatty acid synthesis), Propionyl-CoA Carboxylase, Histone biotinylation | Calcitriol receptor (VDR) activation, intestinal calcium/phosphorus absorption, antimicrobial peptide synthesis |
|
Deficiency Condition
|
Alopecia (Hair loss), Erythematous scaly periorofacial rash, Brittle nails, Neurological depression / hallucinations | Rickets (children), Osteomalacia (adults), Immune dysregulation |
|
Top Whole Food Sources
|
Egg Yolk, Beef Liver, Salmon, Pork Chop, Sunflower Seeds, Almonds, Sweet Potatoes | Sunlight UVB, Atlantic Salmon, Sardines, Egg Yolk, Fortified Milk |
|
Adult Adequate Intake (AI)
|
30 µg / day (35 µg during lactation) | — |
|
Raw Egg White (Avidin) Interaction
|
Raw egg albumen contains avidin glycoprotein which binds biotin with Kd ~10^-15 M (the strongest non-covalent bond known), completely blocking absorption unless cooked | — |
|
Adult RDA / RDI
|
— | 600 – 800 IU / day (15 – 20 µg) |
|
Target Serum 25(OH)D Level
|
— | 30 – 50 ng / mL (75 – 125 nmol / L) |
Other Alternatives to Compare
Compare Vitamin B7 (Biotin / Vitamin H) vs. Calcium (Elemental Ca) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Iodine (Elemental I) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Iron (Heme & Non-Heme) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Magnesium (Elemental Mg) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Potassium (Elemental K) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Selenium (Elemental Se) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Sodium (Elemental Na) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin A (Retinol & Beta-Carotene) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B1 (Thiamine) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B12 (Cobalamin) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B2 (Riboflavin) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B5 (Pantothenic Acid) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B6 (Pyridoxal 5'-Phosphate / PLP) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin B9 (Folate & Folic Acid) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin C (L-Ascorbic Acid) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin E (d-Alpha-Tocopherol) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Vitamin K1 (Phylloquinone) →
Compare Vitamin B7 (Biotin / Vitamin H) vs. Zinc (Elemental Zn) →