Side-by-Side Comparison
Essential Vitamins & Minerals
Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Zinc (Elemental Zn)
Comparing 2 standards across 9 specifications. 9 key differences identified.
Comparing:
Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide)
Zinc (Elemental Zn)
Vitamin B3 comprises nicotinic acid and nicotinamide, precursors to NAD+ and NADP+ coenzymes central to over 400 enzymatic cellular reactions and DNA repair by PARP enzymes. Adult RDA is 16 mg NE (men) / 14 mg NE (women), with a Tolerable Upper Limit of 35 mg/day.
Zinc is an essential trace mineral serving as a structural component in over 2,000 transcription factor 'zinc finger' proteins and catalytic cofactor for 300+ enzymes. Adult RDA is 11mg (men) / 8mg (women), with a Tolerable Upper Limit of 40mg/day.
Specification Comparison Table
9 Parameters| Parameter / Spec | ||
|---|---|---|
|
Nutrient Type
|
Water-Soluble Pyridine Vitamin | Essential Trace Mineral |
|
Adult RDA / RDI
|
16 mg NE / day (Men) / 14 mg NE / day (Women) (NE = Niacin Equivalents) | 11 mg / day (Men) / 8 mg / day (Women) |
|
Tolerable Upper Limit (UL)
|
35 mg / day (Supplemental nicotinic acid; prevents prostaglandin flushing) | 40 mg / day (Chronic excess induces copper deficiency) |
|
Chemical Forms
|
Nicotinamide (Niacinamide), Nicotinic Acid, Nicotinamide Riboside (NR), Nicotinamide Mononucleotide (NMN) | Zinc Picolinate, Bisglycinate, Gluconate, Sulfate, Oxide |
|
Primary Biological Function
|
NAD+/NADH redox electron carrier in glycolysis/TCA cycle, NADP+/NADPH reductive biosynthesis, PARP-1 DNA repair, Sirtuin activation | Zinc finger DNA transcription factors, Superoxide Dismutase (SOD1), Carbonic anhydrase, Testosterone synthesis, Phagocytosis |
|
Deficiency Condition
|
Pellagra ('The 4 Ds': Diarrhea, Dermatitis on sun-exposed skin, Dementia, Death) | Impaired immunity, Hypogonadism, Delayed wound healing, Alopecia, Loss of taste/smell (Anosmia/Ageusia) |
|
Top Whole Food Sources
|
Chicken Breast, Canned Tuna, Salmon, Beef, Turkey, Peanuts, Brown Rice, Shiitake Mushrooms | Eastern Oysters, Beef Chuck, Crab, Pumpkin Seeds, Hemp Hearts, Chickpeas |
|
Tryptophan Biosynthesis Pathway
|
60 mg of dietary amino acid L-tryptophan converts endogenously into 1 mg of niacin (1 NE) | — |
|
Copper Balance Warning
|
— | High zinc stimulates intestinal metallothionein which binds copper, risking microcytic anemia if copper is unsupplemented |
Other Alternatives to Compare
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Calcium (Elemental Ca) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Iodine (Elemental I) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Iron (Heme & Non-Heme) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Magnesium (Elemental Mg) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Potassium (Elemental K) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Selenium (Elemental Se) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Sodium (Elemental Na) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin A (Retinol & Beta-Carotene) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B1 (Thiamine) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B12 (Cobalamin) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B2 (Riboflavin) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B5 (Pantothenic Acid) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B6 (Pyridoxal 5'-Phosphate / PLP) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B7 (Biotin / Vitamin H) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin B9 (Folate & Folic Acid) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin C (L-Ascorbic Acid) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin D3 (Cholecalciferol) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin E (d-Alpha-Tocopherol) →
Compare Vitamin B3 (Niacin / Nicotinic Acid & Nicotinamide) vs. Vitamin K1 (Phylloquinone) →