NaturesPlus Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Tablets supplement bottle
NaturesPlus

Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Tablets

What We Researched
25 active ingredients analyzed · 10 inactive ingredients decoded · 2 retailers compared · Last updated: Mar 2026
90
Product Score Excellent
59
Brand Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as beta carotene) (from Blakeslea trispora and spirulina) (15,000 IU) 4,500 mcg RAE 500%
Vitamin C (as ascorbic acid; esterified C [ascorbyl palmitate]) 1,010 mg 1,122%
Vitamin D (as cholecalciferol) (vegan [D3]) (1000 IU) 25 mcg 125%
Vitamin E (as d-alpha tocopheryl succinate) (250 IU) 168 mg 1,120%
Thiamin (as thiamine HCI) 30 mg 2,500%
Riboflavin (as riboflavin) 30 mg 2,308%
Niacin (as niacinamide) 125 mg NE 781%
Vitamin B6 (as pyridoxine HCI) 30 mg 1,765%
Folate (as calcium-L-5-methyltetrahydrofolate) (425 mcg L-methylfolate) 708 mcg DFE 177%
Vitamin B12 (as methylcobalamin) 1,000 mcg 41,667%
Biotin 300 mcg 1,000%
Pantothenic Acid (as calcium pantothenate) 125 mg 2,500%
Choline (as bitartrate) 30 mg 5%
Calcium (as citrate, di-calcium phosphate) 250 mg 19%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as aminoate*** complex) 125 mg 30%
Zinc (as aminoate*** complex, picolinate) 15 mg 136%
Selenium (as aminoate*** complex) 70 mcg 127%
Copper (chlorophyllin; as aminoate*** complex) 4.5 mg 500%
Manganese (as aminoate*** complex) 2 mg 87%
Chromium (as aminoate*** complex) 120 mcg 343%
Bioavailability Very Good

Absorption Rating

  • Vitamin A (as beta carotene) (from Blakeslea trispora and spirulina) (15,000 IU) Fair
  • Vitamin C (as ascorbic acid; esterified C [ascorbyl palmitate]) Fair
  • Vitamin D (as cholecalciferol) (vegan [D3]) (1000 IU) Good
  • Vitamin E (as d-alpha tocopheryl succinate) (250 IU) Good
  • Thiamin (as thiamine HCI) Fair
  • Riboflavin (as riboflavin) Good
  • Niacin (as niacinamide) Good
  • Vitamin B6 (as pyridoxine HCI) Fair
  • Folate (as calcium-L-5-methyltetrahydrofolate) (425 mcg L-methylfolate) Good
  • Vitamin B12 (as methylcobalamin) Good
  • Biotin Good
  • Pantothenic Acid (as calcium pantothenate) Good
  • Choline (as bitartrate) Poor
  • Calcium (as citrate, di-calcium phosphate) Fair
  • Iodine (as potassium iodide) Good
  • Magnesium (as aminoate*** complex) Good
  • Zinc (as aminoate*** complex, picolinate) Fair
  • Selenium (as aminoate*** complex) Good
  • Copper (chlorophyllin; as aminoate*** complex) Fair
  • Manganese (as aminoate*** complex) Good
  • Chromium (as aminoate*** complex) Good
Other Ingredients Excellent

Fillers & Additives

  • Di-Calcium Phosphate
  • Hydroxypropyl Cellulose
  • Magnesium Oxide
  • Microcrystalline Cellulose
  • Silica
  • Vegetable Cellulose
  • Zinc Sulfate
  • Magnesium Stearate
  • Manganese Sulfate
  • Stearic Acid and Pharmaceutical Glaze
Efficacy Very Good

Dosage Analysis

  • Vitamin A (as beta carotene) (from Blakeslea trispora and spirulina) (15,000 IU) 4,500 mcg RAE High
  • Vitamin C (as ascorbic acid; esterified C [ascorbyl palmitate]) 1,010 mg Effective
  • Vitamin D (as cholecalciferol) (vegan [D3]) (1000 IU) 25 mcg Effective
  • Vitamin E (as d-alpha tocopheryl succinate) (250 IU) 168 mg Effective
  • Thiamin (as thiamine HCI) 30 mg Effective
  • Riboflavin (as riboflavin) 30 mg Effective
  • Niacin (as niacinamide) 125 mg NE High
  • Vitamin B6 (as pyridoxine HCI) 30 mg Effective
  • Folate (as calcium-L-5-methyltetrahydrofolate) (425 mcg L-methylfolate) 708 mcg DFE Effective
  • Vitamin B12 (as methylcobalamin) 1,000 mcg Effective
  • Biotin 300 mcg Effective
  • Pantothenic Acid (as calcium pantothenate) 125 mg Effective
  • Choline (as bitartrate) 30 mg Under-dosed
  • Calcium (as citrate, di-calcium phosphate) 250 mg Under-dosed
  • Iodine (as potassium iodide) 150 mcg Effective
  • Magnesium (as aminoate*** complex) 125 mg Under-dosed
  • Zinc (as aminoate*** complex, picolinate) 15 mg Effective
  • Selenium (as aminoate*** complex) 70 mcg Effective
  • Copper (chlorophyllin; as aminoate*** complex) 4.5 mg High
  • Manganese (as aminoate*** complex) 2 mg Effective
  • Chromium (as aminoate*** complex) 120 mcg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 15
Total Carbohydrate 3 1%**
Dietary Fiber 1 g 4%**
Protein 1 g 2%**
Vitamin A (as beta carotene) (from Blakeslea trispora and spirulina) (15,000 IU) 4,500 mcg RAE 500%
Vitamin C (as ascorbic acid; esterified C [ascorbyl palmitate]) 1,010 mg 1,122%
Vitamin D (as cholecalciferol) (vegan [D3]) (1000 IU) 25 mcg 125%
Vitamin E (as d-alpha tocopheryl succinate) (250 IU) 168 mg 1,120%
Thiamin (as thiamine HCI) 30 mg 2,500%
Riboflavin (as riboflavin) 30 mg 2,308%
Niacin (as niacinamide) 125 mg NE 781%
Vitamin B6 (as pyridoxine HCI) 30 mg 1,765%
Folate (as calcium-L-5-methyltetrahydrofolate) (425 mcg L-methylfolate) 708 mcg DFE 177%
Vitamin B12 (as methylcobalamin) 1,000 mcg 41,667%
Biotin 300 mcg 1,000%
Pantothenic Acid (as calcium pantothenate) 125 mg 2,500%
Choline (as bitartrate) 30 mg 5%
Calcium (as citrate, di-calcium phosphate) 250 mg 19%
Iodine (as potassium iodide) 150 mcg 100%
Magnesium (as aminoate*** complex) 125 mg 30%
Zinc (as aminoate*** complex, picolinate) 15 mg 136%
Selenium (as aminoate*** complex) 70 mcg 127%
Copper (chlorophyllin; as aminoate*** complex) 4.5 mg 500%
Manganese (as aminoate*** complex) 2 mg 87%
Chromium (as aminoate*** complex) 120 mcg 343%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Di-Calcium Phosphate Generally_safe

It is used as a filler or source of calcium and phosphorus.

Hydroxypropyl Cellulose Safe

Binds tablet ingredients and can form tablet coatings.

Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Zinc Sulfate Generally_safe

It is used to supplement zinc intake.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Manganese Sulfate Generally_safe

It provides a source of manganese.

Stearic Acid and Pharmaceutical Glaze Generally_safe

It is used as a coating to protect the tablet and improve swallowing.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$47$46$45$44$43 Mar 12 $45.00
iHerb

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
NaturesPlus

Founded 1972 · Melville, New York, United States · 420 products · naturesplus.com

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Claimed

Violation History

1 incident
Recall Keto Living Sugar Control Capsules2022-05-06Source
Related Supplements
Frequently Asked Questions
Is NaturesPlus Source of Life®, Gold a good supplement?

NaturesPlus Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Tablets received a product quality score of 90/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 25 active ingredients with 30 servings per container. Of the 10 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, NaturesPlus, holds a brand trust score of 59/100.

What are the ingredients in NaturesPlus Source of Life®, Gold?

NaturesPlus Source of Life®, Gold contains 25 active ingredients: Calories (15), Total Carbohydrate (3), Dietary Fiber (1 g), Protein (1 g), Vitamin A (as beta carotene) (from Blakeslea trispora and spirulina) (15,000 IU) (4,500 mcg RAE), Vitamin C (as ascorbic acid; esterified C [ascorbyl palmitate]) (1,010 mg), and 19 more. Notable high-dose ingredients include Vitamin A at 500% DV, Vitamin C at 1,122% DV, Vitamin E at 1,120% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is NaturesPlus Source of Life®, Gold safe to take?

NaturesPlus Source of Life®, Gold, The Ultimate Multivitamin Supplement, 90 Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is NaturesPlus a trustworthy supplement brand?

NaturesPlus receives a brand trust score of 59/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1972 and headquartered in Melville, New York, United States, the company offers 420 products in their lineup. Note: NaturesPlus has 1 historical regulatory incident on record, which are factored into the trust score.

How much vitamin d3 should i take daily?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.