Source of Life Gold Tablets

Source of Life Gold Tablets

NaturesPlus4.6 (1,924 ratings)
Format:Tablet Quantity: 90 Tablet(s) · 30 servings
Goals
$54.78 $1.82 per serving

Product analysis

46 out of 100

Source of Life Gold Tablets offers broad nutritional support for normal energy metabolism, immunity and bone health when intake falls short. Its many undisclosed blend proportions and relatively high cost make the added ingredients harder to justify.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality45

Nutrient form quality varies, with favorably assessed vitamin K and B6 alongside less clear mineral blends. Several other ingredients lack enough information for a dependable quality comparison.

Ingredient Transparency70

All listed amounts are disclosed, but several ingredient forms and all applicable blend proportions are missing. You can compare headline amounts more easily than the contents of the individual blends.

Value For Money28

Value is generally weak for the nutrients and added compounds that can be compared. The broad formula comes at a relatively high cost without clear value across its many extras.

Customer Satisfaction83

Customer feedback is positive across a substantial number of ratings. The response gives a reasonably established picture of satisfaction.

Product Focus0

The formula covers many nutritional roles but is complex and spreads across a very wide range of goals. Its clearest benefits come from filling nutrient gaps rather than adding broad improvements when intake is adequate.

Format
Tablet
Container
90 Tablet(s)
Per serving
$1.82
Customer rating
4.6 · 1,924 ratings
Report analysis

Goals

Immunity
Impact
Highest effect
C- Ingredient FitA+ PathwaysA+ EvidenceA+ Formulation Logic
Magnesium · 125 mgVitamin C · 1010 mgZinc · 15 mgVitamin A · 4505 mcg RAEVitamin D · 25 mcgSelenium · 70 mcg
Study evidence
Magnesium Supportive 8 studies
Selenium Mixed 37 studies
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Vitamin E Supportive 21 studies
Zinc Supportive 73 studies
Impact
Highest effect
C+ Ingredient FitA+ PathwaysA- EvidenceA+ Formulation Logic
Folate · 708 mcg DFEVitamin B12 · 1000 mcgVitamin D · 25 mcgMagnesium · 125 mgVitamin K · 100 mcgBoron · 1 mgSelenium · 70 mcgZinc · 15 mgVitamin C · 1010 mg
Study evidence
Boron Supportive 6 studies
Folate Supportive 80 studies
Magnesium Supportive 114 studies
Selenium Supportive 70 studies
Vitamin C Supportive 56 studies
Vitamin D Supportive 115 studies
Vitamin K Supportive 34 studies
Zinc Supportive 60 studies
Bone Health
Impact
High effect
C- Ingredient FitB+ PathwaysA+ EvidenceA+ Formulation Logic
Vitamin K · 100 mcgMagnesium · 125 mgCalcium · 250 mgVitamin D · 25 mcgCopper · 4.5 mgManganese · 4 mgBoron · 1 mgZinc · 15 mgVitamin C · 1010 mg
Study evidence
Boron Supportive 5 studies
Calcium Supportive 144 studies
Copper Disputed 20 studies
Folate Supportive 50 studies
Magnesium Supportive 48 studies
Manganese Adverse 12 studies
Potassium Supportive 39 studies
Vitamin A Adverse 56 studies
Vitamin C Supportive 46 studies
Vitamin D Supportive 202 studies
Vitamin K Supportive 78 studies
Zinc Supportive 33 studies
Impact
Moderate effect
C- Ingredient FitF PathwaysA EvidenceA+ Formulation Logic
Iodine · 150 mcgVitamin D · 25 mcgVitamin B5 · 125 mgMagnesium · 125 mgRiboflavin · 30 mgThiamin · 30 mgVitamin B12 · 1000 mcgPotassium · 60 mgCoenzyme Q-10 · 50 mg
Study evidence
Iodine Adverse 3 studies
Magnesium Supportive 4 studies
Potassium Supportive 2 studies
Thiamin Disputed 12 studies
Vitamin D Supportive 32 studies
Cardiovascular Support
Impact
High effect
D+ Ingredient FitB+ PathwaysA- EvidenceA+ Formulation Logic
Vitamin K · 100 mcgPotassium · 60 mgMagnesium · 125 mgVitamin D · 25 mcgCoenzyme Q-10 · 50 mgSelenium · 70 mcgVitamin B12 · 1000 mcgVitamin B6 · 30 mgVitamin E · 167 mgLycopene · 2.5 mgFolate · 708 mcg DFENiacin · 125 mg NEVitamin C · 1010 mg
Study evidence
Folate Supportive 93 studies
Lycopene Supportive 68 studies
Magnesium Supportive 123 studies
Niacin Supportive 136 studies
Potassium Supportive 117 studies
Rutin Supportive 4 studies
Selenium Supportive 107 studies
Vitamin B6 Supportive 35 studies
Vitamin C Supportive 101 studies
Vitamin D Mixed 170 studies
Vitamin E Mixed 79 studies
Vitamin K Supportive 40 studies
Heart Health
Impact
High effect
D+ Ingredient FitC PathwaysA+ EvidenceA+ Formulation Logic
Vitamin K · 100 mcgMagnesium · 125 mgCoenzyme Q-10 · 50 mgVitamin B12 · 1000 mcgVitamin B6 · 30 mgFolate · 708 mcg DFEVitamin D · 25 mcg
Study evidence
Folate Supportive 116 studies
Magnesium Supportive 158 studies
Niacin Supportive 105 studies
Potassium Supportive 182 studies
Selenium Mixed 89 studies
Vitamin B6 Supportive 44 studies
Vitamin D Mixed 164 studies
Vitamin K Mixed 62 studies

Ingredients

IngredientAmount per servingScore
Calories
5 Calorie(s)
Protein
1 Gram(s)
Vitamin A (Beta Carotene, Lutein, Lycopene, Xanthophylls, Zeaxanthin)
4505 mcg RAE
Vitamin C (Ascorbic Acid, Esterified-C)
1010 mg 45
Vitamin D3 (Lichen)
25 mcg
Vitamin E (D-Alpha-Tocopheryl Succinate)
167 mg
Vitamin K2 (Menaquinone-4, Menaquinone-7)
100 mcg 44
Thiamin (Thiamin HCl)
30 mg 65
Riboflavin
30 mg 49
Niacin (Niacinamide)
125 mg NE
Vitamin B6 (Pyridoxine Hydrochloride)
30 mg 68
Folate (Calcium-L-5-Methyltetrahydrofolate)
708 mcg DFE
Vitamin B12 (Methylcobalamin)
1000 mcg 84
Biotin
300 mcg 59
Pantothenic Acid (Calcium Pantothenate)
125 mg 70
Choline (Choline Bitartrate)
30 mg 50
Calcium (Calcium Citrate, D-Calcium Phosphate, Spirulina platensis, Whole Foods)
250 mg 47
Iodine (Kelp, Potassium Iodide)
150 mcg 73
Magnesium (Magnesium Aminoate complex)
125 mg
Zinc (Zinc Aminoate Complex, Zinc Picolinate)
15 mg
Selenium (Selenium Aminoate Complex)
70 mcg 51
Copper (Chlorophyllin, Copper Aminoate Complex)
4.5 mg 41
Manganese (Manganese Aminoate Complex)
4 mg 72
Chromium (Chromium Aminoate Complex)
120 mcg 36
Potassium (Potassium Aminoate Complex, Spirulina)
60 mg
Whole Food PhytoAlgae & Organic Mushroom Blend
800 mg
Amino Acids (Chia, Mineral Aminoates, Spirulina, Whole Food PhytoAlgae)
510 mg
Whole Food Omega Fatty Acid and Prebiotic Fiber Blend
200 mg
Enzyme Blend
100 mg
Anti-Aging Blend
50 mg
Trans-Resveratrol (Grape Seed Extract, Polygonum cuspidatum Root Extract, Red Wine Extract, Concentrate)
50 mg 73
Coenzyme Q10
50 mg 29
Inositol
50 mg
Bioflavonoid Complex (Flavanols, Flavanones, Flavones, Phenolic compounds, Citrus spp.)
30 mg
Whole Food Fiber Complex
30 mg
Korean Ginseng
25 mg
PABA
25 mg 78
Quercetin (Dimorphandra mollis)
10 mg
Trace Mineral Complex
10 mg
Chlorophyll (Spirulina)
7.5 mg 67
Rutin (Sophora japonica)
5 mg 67
Hesperidin Complex (Citrus sinensis)
5 mg
Carotenoids
4 mg
Lutein (active Carotenoid)
3 mg
Lycopene
2.5 mg 70
Full Spectrum Probiotic Blend
2 mg
Boron (Boron Citrate)
1 mg 60
Octacosanol
200 mcg
Gluten Free Adults 18–50 Vegetarian
Report overview
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
A serving provides 4 mg of manganese at a high cost per serving. The stated source is manganese aminoate.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

The manganese comes from manganese aminoate.
Manganese Chemical Form
The manganese comes from manganese aminoate.

Dose, Safety & Label Transparency100

A serving contains 4 mg of manganese. Both the manganese amount and its source are stated.
Manganese Dosage Efficacy & Safety
A serving provides 4 mg of manganese.
Elemental Weight Disclosure
Both the manganese amount and its source are stated.

Value20

The cost per serving is high.
Price per Serving vs. Median
The cost per serving is high.
PABA · 25 mg OverallScore78
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD- Value
The serving supplies 25 mg of PABA. The whole-product price is high relative to its PABA amount. PABA is named, but a pharmaceutical grade or high-purity designation is not available.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

PABA is named, but a pharmaceutical grade or high-purity designation is not available.
PABA Source & Grade
PABA is named, but a pharmaceutical grade or high-purity designation is not available.

Dose, Safety & Label Transparency95

The serving supplies 25 mg of PABA. No artificial colors, titanium dioxide or hydrogenated oils are recorded.
PABA Dosage Alignment
The serving supplies 25 mg of PABA.
Label Disclosure Clarity
The PABA amount is stated as 25 mg per serving.
Additive and Excipient Quality
No artificial colors, titanium dioxide or hydrogenated oils are recorded.

Value40

The whole-product price is high relative to its PABA amount.
Price per 100mg PABA
The whole-product price is high relative to its PABA amount.
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
+4
Each serving provides 1,000 mcg of B12 at a high cost per 1,000 mcg, based on the full product price. The B12 is Methylcobalamin, a bioactive form.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

The B12 is Methylcobalamin, a bioactive form.
Bioactive B12 Form Selection
The B12 is Methylcobalamin, a bioactive form.

Dose, Safety & Label Transparency100

Each serving provides 1,000 mcg of B12, an amount used for higher needs. The label names Methylcobalamin and gives its B12 amount.
Therapeutic Dosage Level
Each serving provides 1,000 mcg of B12, an amount used for higher needs.
Label and Form Transparency
The label names Methylcobalamin and gives its B12 amount.

Value20

The cost per 1,000 mcg of B12 is high, based on the full product price.
Price per 1,000 mcg B12
The cost per 1,000 mcg of B12 is high, based on the full product price.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. [Comparative study of the urinary excretion of boron, calcium, magnesium and phosphorus in postmenopausal women with and without osteoporosis].
    José Ramón V; Mora Mora M; Marino Alarcón O; Hernández G; Josefina Linares L; Urdaneta Romero H; Arévalo González E · Investigacion clinica · 2013
    Case-control study45 participantsBone Health forBoron
  2. Effect of dietary boron on mineral, estrogen, and testosterone metabolism in postmenopausal women.
    Nielsen FH; Hunt CD; Mullen LM; Hunt JR · FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 1987
    Single-arm trial12 participantsBone Health forBoron
  3. The relationship between boron and magnesium status and bone mineral density in the human: a review.
    Volpe SL; Taper LJ; Meacham S · Magnesium research · 1994
    Narrative reviewBone Health forBoron
  4. Effects of boron supplementation on bone mineral density and dietary, blood, and urinary calcium, phosphorus, magnesium, and boron in female athletes.
    Meacham SL; Taper LJ; Volpe SL · Environmental health perspectives · 1995
    Randomized trial28 participantsBone Health forBoron
  5. Metabolic responses of postmenopausal women to supplemental dietary boron and aluminum during usual and low magnesium intake: boron, calcium, and magnesium absorption and retention and blood mineral concentrations
    C D Hunt, J L Herbel, F H Nielsen · The American Journal of Clinical Nutrition · 1997
    Non-randomized trial11 participantsBone Health forBoron
  6. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  7. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  8. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  9. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  10. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  11. The Association between Dietary and Circulating Copper Levels and Osteoporosis: a Scoping Review.
    Ju Y; Xiong W; Pang Y; Chen Z; Hou J; Zheng S; Li Z; Liu T; Xia H; Xia M; Zhong Y; Li J; Jiang X · Biological trace element research · 2026
    Scoping review18 studies pooledBone Health forCopper
  12. Association between dietary copper, iron, zinc, selenium intake and osteopenia or osteoporosis in elderly hypertensive patients: a retrospective cohort study.
    Chen M; Jia L; Gao R · Frontiers in nutrition · 2024
    Cohort study5,286 participantsBone Health forCopper
  13. Associations of dietary copper intake with total bone mineral density and lumbar spine bone mineral density in American adults.
    Hu M; Wang Z; Li C; Zheng Y; Hu J · Medicine · 2025
    Cross-sectional studyBone Health forCopper
  14. The association between dietary mineral intake and bone mineral density: a cross-sectional study.
    Wei M; Wei J; Huang S · Journal of health, population, and nutrition · 2025
    Cross-sectional study11,520 participantsBone Health forCopper
  15. Association between dietary copper intake and bone mineral density in children and adolescents aged 8-19 years: A cross-sectional study.
    Cui A; Yan J; Li H; Fan Z; Wei X; Wang H; Zhuang Y · PloS one · 2024
    Cross-sectional study6,965 participantsBone Health forCopper
  16. Association between RBC folate and lumbar bone mineral density in postmenopausal women, a cross-sectional study from NHANES 2009-2018.
    Wei H; Jin Z; Zhou L; Tang G; Chai S; Che X; Tan Y; Zeng W · Frontiers in endocrinology · 2025
    Cross-sectional study1,315 participantsBone Health forFolate
  17. Genetic variants modify the associations of concentrations of methylmalonic acid, vitamin B-12, vitamin B-6, and folate with bone mineral density.
    Liu CT; Karasik D; Xu H; Zhou Y; Broe K; Cupples LA; Cpgm de Groot L; Ham A; Hannan MT; Hsu YH; Jacques P; McLean RR; Paul L; Selhub J; Trajanoska K; van der Velde N; van Schoor N; Kiel DP · The American journal of clinical nutrition · 2021
    Cohort study4,310 participantsBone Health forFolate
  18. Adequate Intake and Supplementation of B Vitamins, in Particular Folic Acid, can Play a Protective Role in Bone Health.
    Rondanelli M; Tartara A; Fossari F; Vecchio V; Faliva MA; Naso M; Perna S; Nichetti M; Peroni G · Current aging science · 2022
    Narrative review35,298 participants29 studies pooledBone Health forFolate Bone Health forVitamin B6
  19. Relation of homocysteine, folate, and vitamin B12 to bone mineral density of postmenopausal women.
    Cagnacci A; Baldassari F; Rivolta G; Arangino S; Volpe A · Bone · 2004
    Cross-sectional study161 participantsBone Health forFolate
  20. Dietary intake of folate, but not vitamin B2 or B12, is associated with increased bone mineral density 5 years after the menopause: results from a 10-year follow-up study in early postmenopausal women.
    Rejnmark L; Vestergaard P; Hermann AP; Brot C; Eiken P; Mosekilde L · Calcified tissue international · 2008
    Cohort study1,869 participantsBone Health forFolate