Only One

4.1 (16 reviews)

In Stock

Supplement Ingredients
Ingredients	Amount Per Serving
Calories	-
Total Fat	500 mg
Cholesterol Cholesterol	5 mg
Total Carbohydrates	1 g
Protein	1 g
Vitamin A Vitamin A	1.5 mg
Beta Carotene Vitamin A	-
Vitamin C Vitamin C	250 mg
Ascorbic Acid Vitamin C	-
Vitamin D3 Vitamin D	25 mcg
cholecalciferol Vitamin D	-
Vitamin E Vitamin E	20 mg
d-Alpha Tocopherol Vitamin E	-
Thiamin Vitamin B1	20 mg
Thiamine Hydrochloride Vitamin B1	-
riboflavin Vitamin B2	20 mg
niacin Vitamin B3	20 mg
niacinamide Vitamin B3	-
Vitamin B6 Vitamin B6	20 mg
Pyridoxine Hydrochloride Vitamin B6	-
folate Vitamin B9	680 mcg DFE
vitamin B12 Vitamin B12	50 mcg
methylcobalamin Vitamin B12	-
biotin Vitamin B7	500 mcg
pantothenic acid Vitamin B5	20 mg
d-calcium pantothenate Vitamin B5	-
calcium Calcium	30 mg
Iron Iron	18 mg
Iron amino acid chelate Iron	-
magnesium Magnesium	10 mg
magnesium oxide Magnesium	-
Zinc Zinc	15 mg
Zinc Oxide Zinc	-
selenium Selenium	70 mcg
L-selenomethionine Selenium	-
copper Copper	2 mg
copper citrate Copper	-
manganese Manganese	2 mg
manganese citrate Manganese	-
chromium Chromium	120 mcg
chromium picolinate Chromium	-
molybdenum Molybdenum	75 mcg
molybdenum citrate Molybdenum	-
fish oil Omega-3 Fatty Acids	500 mg
omega 3 fatty acids	150 mg
Green Super Food Blend	25 mg
Alfalfa powder (aerial) Alfalfa	-
Broccoli powder (aerial)	-
Chlorella (Chlorella pyrenoidosa) powder	-
Kale (Brassica sp.) powder (leaf)	-
Spirulina powder (whole plant)	-
Bioperine Complex	6 mg
BioPerine® Black Pepper extract	-
Ginger extract Ginger	-

Ingredient Research

Vitamin B1
- Very lowImproved Left Ventricular Ejection Fraction3 studies
Vitamin B12
- LowReduced Vitamin B12 Level5 studies
Vitamin B6
- LowReduced Anxiety3 studies
Vitamin B9
- HighReduced Homocysteine Level6 studies
- ModerateIncreased Folate Level3 studies
Vitamin C
- HighReduced Pain7 studies
- ModerateReduced Interleukin-6 Levels6 studies
- ModerateReduced Systolic Blood Pressure4 studies
Vitamin D
- HighIncreased 25-hydroxyvitamin D Level14 studies
- HighReduced Parathyroid Hormone Level4 studies
- ModerateImproved Insulin Sensitivity9 studies
Vitamin E
- ModerateReduced Aspartate Aminotransferase Level5 studies
- ModerateReduced Alanine Aminotransferase Level4 studies
- ModerateReduced Pain3 studies
Calcium
- LowIncreased Total Hip Bone Mineral Density3 studies
- LowReduced Stillbirth3 studies
Iron
- ModerateIncreased Hemoglobin Levels5 studies
- ModerateReduced Iron Deficiency4 studies
- LowIncreased Ferritin Level4 studies
Magnesium
- LowReduced Depression Symptoms3 studies
- LowReduced C-Reactive Protein Levels3 studies
Selenium
- HighReduced Thyroid Peroxidase Antibody Level5 studies
- LowReduced Thyroglobulin Antibody Level4 studies
- LowIncreased Serum Free Thyroxine Levels3 studies
Zinc
- LowReduced Zinc Level3 studies

Research Evidence

How this product's ingredient doses compare to doses studied in research.

Vitamin C250 mg
Studies used 12–1,200 mg/day (median 250) across 15 studies
In typical studied range
Vitamin E20 mg
Studies used 5–1,200 mg/day (median 300) across 10 studies
Low end of studied doses
Form mismatch: this product uses Alpha-Tocopherol. Most research support uses α-Te (1 study).
Vitamin B120 mg
Studies used 0–1,200 mg/day (median 100) across 8 studies
Low end of studied doses
Vitamin B220 mg
Studies used 20–1,200 mg/day (median 100) across 5 studies
Low end of studied doses
Vitamin B320 mg
Studies used 100–3,000 mg/day (median 714) across 9 studies
Below studied range
Vitamin B620 mg
Studies used 19–1,200 mg/day (median 80) across 6 studies
Low end of studied doses
Vitamin B7500 mcg
Studies used 10,000 mcg/day (median 10,000) across 1 study
Below studied range
Calcium30 mg
Studies used 500–1,000 mg/day (median 750) across 4 studies
Below studied range
Iron18 mg
Studies used 4.2–105 mg/day (median 24.85) across 4 studies
In typical studied range
Magnesium10 mg
Studies used 80–637 mg/day (median 250) across 7 studies
Below studied range
Zinc15 mg
Studies used 10–100 mg/day (median 55) across 2 studies
Low end of studied doses
Chromium120 mcg
Studies used 200–400 mcg/day (median 300) across 2 studies
Below studied range

Research-supported combinations

Ingredient pairs in this product that have synthesised research evidence together.

Low evidenceVitamin E + Vitamin Cfor Reduced Pain· 3 studies
Across 3 studies, all reported beneficial effects of the Vitamin E and Vitamin C combination on pain reduction, with effect sizes ranging from small to moderate and all findings statistically significant. Compared to Vitamin C alone (moderate evidence, small effect), the combination shows a similar directional benefit but the limited number of studies precludes a definitive comparison. The median study duration was 60 days (reported in 1 of 3 studies). No form data were reported for either substance.

Product Description

Daily Nutritional Support: Just one convenient softgel daily provides you with an array of essential vitamins and minerals for overall wellness.
Immune System Boost: Contains 250 mg of Vitamin C and 20 mg of Zinc to help strengthen your immune defenses.
Heart Health: Includes Omega-3 fatty acids and Fish Oil for cardiovascular support.
Energy Production: B vitamins (B6, B12, niacin, thiamin, riboflavin) promote energy metabolism and reduce fatigue.
Skin & Hair Health: Biotin, Vitamin E, and Green Super Food Blend nourish your skin and hair from within.
Bone & Teeth Support: Vitamin D3 and Calcium contribute to maintaining strong bones and teeth.
Antioxidant Protection: Selenium, Vitamin A, and Vitamin C help combat oxidative stress and support cellular health.
Enhanced Nutrient Absorption: Bioperine Complex assists in improving the bioavailability of nutrients.
Iron-Rich Formula: With 18 mg of Iron, it helps in the formation of red blood cells and reduces tiredness.
Mental Clarity and Mood Balance: Folate and Magnesium aid cognitive function and emotional stability.

Irwin Naturals' Only One formula combines an extensive range of essential nutrients into a single daily softgel, delivering comprehensive support for your health without the need for multiple supplements.