Rugby Prenavite supplement bottle
Rugby

Prenavite

What We Researched
14 active ingredients analyzed · 27 inactive ingredients decoded · 2 retailers compared · Last updated: Mar 2026
57
Product Score Poor

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as Vitamin A Acetate) 8000 IU 100%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Vitamin D (as Cholecalciferol) 400 IU 100%
Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU 100%
Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.7 mg 100%
Riboflavin (as Vitamin B2) 2 mg 100%
Niacin (as Niacinamide) 20 mg 100%
Vitamin B6 (as Pyridoxine Hydrochloride) 4 mg 160%
Folic Acid 800 mcg 100%
Vitamin B12 (as Cyanocobalamin) 8 mcg 100%
Calcium (as Calcium Sulfate) 200 mg 15%
Iron (as Ferrous Fumarate) 28 mg 156%
Iodine (as Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Oxide) 100 mg 22%
Bioavailability Good

Absorption Rating

  • Vitamin A (as Vitamin A Acetate) Good
  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin D (as Cholecalciferol) Good
  • Vitamin E (as DL-Alpha-Tocopheryl Acetate) Fair
  • Thiamine (as Thiamine Mononitrate, Vitamin B1) Fair
  • Riboflavin (as Vitamin B2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Folic Acid Fair
  • Vitamin B12 (as Cyanocobalamin) Fair
  • Calcium (as Calcium Sulfate) Good
  • Iron (as Ferrous Fumarate) Fair
  • Iodine (as Potassium Iodide) Good
  • Magnesium (as Magnesium Oxide) Poor
Other Ingredients Very Poor

Fillers & Additives

  • Microcrystalline Cellulose
  • Croscarmellose Sodium
  • Stearic Acid
  • Gelatin
  • Pharmaceutical Glaze
  • dicalcium phosphate anhydrous
  • Gum Arabic
  • Vegetable Magnesium Stearate
  • cozein
  • Maltodextrin
  • Silicon Dioxide
  • Hypromellose
  • Corn Starch
  • Modified Food Starch
  • FD&C Red #40 Lake High
  • Sorbic Acid
  • Sodium Benzoate Medium
  • Talc High
  • Polyethylene Glycol Low
  • Triacetin
  • FD&C Yellow #6 Lake Low
  • Sodium Ascorbate
  • BHT Medium
  • Medium Chain Triglycerides
  • Guar Gum
  • Carnauba Wax
  • DL-Alpha-Tocopherol
Efficacy Good

Dosage Analysis

  • Vitamin A (as Vitamin A Acetate) 8000 IU Under-dosed
  • Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
  • Vitamin D (as Cholecalciferol) 400 IU Under-dosed
  • Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU Effective
  • Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.7 mg Effective
  • Riboflavin (as Vitamin B2) 2 mg Effective
  • Niacin (as Niacinamide) 20 mg Effective
  • Vitamin B6 (as Pyridoxine Hydrochloride) 4 mg Effective
  • Folic Acid 800 mcg Effective
  • Vitamin B12 (as Cyanocobalamin) 8 mcg Effective
  • Calcium (as Calcium Sulfate) 200 mg Under-dosed
  • Iron (as Ferrous Fumarate) 28 mg Effective
  • Iodine (as Potassium Iodide) 150 mcg Effective
  • Magnesium (as Magnesium Oxide) 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (as Vitamin A Acetate) 8000 IU 100%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Vitamin D (as Cholecalciferol) 400 IU 100%
Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU 100%
Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.7 mg 100%
Riboflavin (as Vitamin B2) 2 mg 100%
Niacin (as Niacinamide) 20 mg 100%
Vitamin B6 (as Pyridoxine Hydrochloride) 4 mg 160%
Folic Acid 800 mcg 100%
Vitamin B12 (as Cyanocobalamin) 8 mcg 100%
Calcium (as Calcium Sulfate) 200 mg 15%
Iron (as Ferrous Fumarate) 28 mg 156%
Iodine (as Potassium Iodide) 150 mcg 100%
Magnesium (as Magnesium Oxide) 100 mg 22%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

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

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Pharmaceutical Glaze Generally_safe

It is used to coat tablets or capsules for easier swallowing or controlled release.

dicalcium phosphate anhydrous Unknown
Gum Arabic Safe

It is used as a thickener, binder, or emulsifier.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

cozein Unknown
Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Corn Starch Generally_safe

It is used as a filler, binder, or thickener.

Modified Food Starch Generally_safe

It is used as a filler, binder, or thickener in supplements.

FD&C Red #40 Lake Generally_safe

It is used to give the supplement a red color.

Sorbic Acid Generally_safe

It is used as a preservative to prevent the growth of mold and yeast.

Sodium Benzoate Caution

Prevents bacterial and fungal growth in liquid supplements.

Talc Avoid

It is used to improve powder flow and prevent clumping.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Triacetin Generally_safe

It is used as a solvent or humectant.

FD&C Yellow #6 Lake Caution

It is used to add a yellow color to supplements.

Sodium Ascorbate Safe

It helps to stabilize the pH and prevent oxidation.

BHT Caution

Prevents oxidation and rancidity in oil-containing supplements.

Medium Chain Triglycerides Safe

Enhances absorption of fat-soluble vitamins.

Guar Gum Safe

Thickens and provides fiber in supplement formulations.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

DL-Alpha-Tocopherol Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$14$13$12$11$10 $12.28
Target

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

Brand Trust Report
Rugby

Founded 1961 · Livonia, Michigan, USA · 135 products · majorrugby.com/

Transparency

1 claim

Violation History

4 incidents
Recall All liquid products manufactured by PharmaTech LLC and distributed by Rugby Laboratories2017-08-10Source
Recall Rugby Natural Iron Supplement tablets2013-01-17Source
Recall Rugby Children's Pain & Fever Concentrated Drops (Acetaminophen Drops)2011-07-21Source
Lawsuit Failure to have an effective system to identify and report suspicious orders of controlled substances.2011Source
Related Supplements
Frequently Asked Questions
Is Rugby Prenavite a good supplement?

Rugby Prenavite received a product quality score of 57/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 14 active ingredients Of the 27 inactive ingredients, 12 are rated safe and 4 are flagged for review.

What are the ingredients in Rugby Prenavite?

Rugby Prenavite contains 14 active ingredients: Vitamin A (as Vitamin A Acetate) (8000 IU), Vitamin C (as Ascorbic Acid) (60 mg), Vitamin D (as Cholecalciferol) (400 IU), Vitamin E (as DL-Alpha-Tocopheryl Acetate) (30 IU), Thiamine (as Thiamine Mononitrate, Vitamin B1) (1.7 mg), Riboflavin (as Vitamin B2) (2 mg), and 8 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Rugby Prenavite safe to take?

Rugby Prenavite has been analyzed for ingredient safety across all its components. Of 27 inactive ingredients, 12 are rated safe. 4 ingredients are flagged for review: Sodium Benzoate, Polyethylene Glycol, FD&C Yellow #6 Lake. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

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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.