Source Naturals Ultra-Cal Night supplement bottle
Source Naturals

Ultra-Cal Night

What We Researched
15 active ingredients analyzed · 6 inactive ingredients decoded · 1 brand certification checked · 1 retailer compared · Last updated: Mar 2026
71
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 1 g 1%
Vitamin C (as Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Manganese Ascorbate) 72 mg 120%
Vitamin D3 (as Cholecalciferol) 50 IU 13%
Vitamin K 250 mcg 313%
Vitamin B6 (as Pyridoxine Hydrochloride) 5 mg 250%
Folate (as Folic Acid) 50 mcg 13%
Calcium (as Calcium Ascorbate, Calcium Carbonate, Calcium Citrate, Calcium Ethanolamine Phosphate, Calcium Fumarate, Calcium Malate) 150 mg 15%
Magnesium (as Magnesium Ascorbate, Magnesium Citrate, Magnesium Fumarate, Magnesium Malate, Magnesium Oxide) 150 mg 38%
Zinc (as Zinc Chelate) 2 mg 13%
Copper (as Copper Sebacate) 250 mcg 13%
Manganese (as Manganese Ascorbate) 1.7 mg 88%
SoyLife (as Soy Concentrate) 207 mg
L-Lysine (as L-Lysine Hydrochloride) 15 mg
Silica (as Horsetail Extract) 2.5 mg
Boron (as Boron Amino Acid Chelate) 750 mcg
Bioavailability Good

Absorption Rating

  • Total Carbohydrates Fair
  • Vitamin C (as Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Manganese Ascorbate) Good
  • Vitamin D3 (as Cholecalciferol) Good
  • Vitamin K Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Folate (as Folic Acid) Fair
  • Calcium (as Calcium Ascorbate, Calcium Carbonate, Calcium Citrate, Calcium Ethanolamine Phosphate, Calcium Fumarate, Calcium Malate) Fair
  • Magnesium (as Magnesium Ascorbate, Magnesium Citrate, Magnesium Fumarate, Magnesium Malate, Magnesium Oxide) Good
  • Zinc (as Zinc Chelate) Fair
  • Copper (as Copper Sebacate) Fair
  • Manganese (as Manganese Ascorbate) Good
  • SoyLife (as Soy Concentrate) Fair
  • L-Lysine (as L-Lysine Hydrochloride) Good
  • Silica (as Horsetail Extract) Fair
  • Boron (as Boron Amino Acid Chelate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Stearic Acid
  • Modified Cellulose Gum
  • Acacia Gum
  • Sorbitol
  • Silica
  • Magnesium Stearate
Efficacy Very Poor

Dosage Analysis

  • Vitamin C (as Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Manganese Ascorbate) 72 mg Under-dosed
  • Vitamin D3 (as Cholecalciferol) 50 IU Under-dosed
  • Vitamin K 250 mcg Effective
  • Vitamin B6 (as Pyridoxine Hydrochloride) 5 mg Effective
  • Folate (as Folic Acid) 50 mcg Under-dosed
  • Calcium (as Calcium Ascorbate, Calcium Carbonate, Calcium Citrate, Calcium Ethanolamine Phosphate, Calcium Fumarate, Calcium Malate) 150 mg Under-dosed
  • Magnesium (as Magnesium Ascorbate, Magnesium Citrate, Magnesium Fumarate, Magnesium Malate, Magnesium Oxide) 150 mg Under-dosed
  • Zinc (as Zinc Chelate) 2 mg Under-dosed
  • Copper (as Copper Sebacate) 250 mcg Under-dosed
  • Manganese (as Manganese Ascorbate) 1.7 mg Under-dosed
  • SoyLife (as Soy Concentrate) 207 mg Under-dosed
  • L-Lysine (as L-Lysine Hydrochloride) 15 mg Under-dosed
  • Boron (as Boron Amino Acid Chelate) 750 mcg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Total Carbohydrates 1 g 1%
Vitamin C (as Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Manganese Ascorbate) 72 mg 120%
Vitamin D3 (as Cholecalciferol) 50 IU 13%
Vitamin K 250 mcg 313%
Vitamin B6 (as Pyridoxine Hydrochloride) 5 mg 250%
Folate (as Folic Acid) 50 mcg 13%
Calcium (as Calcium Ascorbate, Calcium Carbonate, Calcium Citrate, Calcium Ethanolamine Phosphate, Calcium Fumarate, Calcium Malate) 150 mg 15%
Magnesium (as Magnesium Ascorbate, Magnesium Citrate, Magnesium Fumarate, Magnesium Malate, Magnesium Oxide) 150 mg 38%
Zinc (as Zinc Chelate) 2 mg 13%
Copper (as Copper Sebacate) 250 mcg 13%
Manganese (as Manganese Ascorbate) 1.7 mg 88%
SoyLife (as Soy Concentrate) 207 mg
L-Lysine (as L-Lysine Hydrochloride) 15 mg
Silica (as Horsetail Extract) 2.5 mg
Boron (as Boron Amino Acid Chelate) 750 mcg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Modified Cellulose Gum Generally_safe

It is used to improve the texture and stability of products.

Acacia Gum Safe

Binds tablet ingredients together. Also a source of soluble fiber.

Sorbitol Safe

Provides sweetness and helps retain moisture in chewables.

Silica Safe

Prevents ingredients from clumping and improves powder flow.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Price Comparison

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

Brand Trust Report
Source Naturals

Founded 1982 · Scotts Valley, CA, USA · 837 products · sourcenaturals.com/

Certifications

1 certification
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is Source Naturals Ultra-Cal Night a good supplement?

Source Naturals Ultra-Cal Night received a product quality score of 71/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 15 active ingredients with 240 servings per container. Of the 6 inactive ingredients, 5 are rated safe and 0 are flagged for review. The manufacturer, Source Naturals, holds a brand trust score of 66/100 with 1 verified certifications including Fda Gmp Inspections.

What are the ingredients in Source Naturals Ultra-Cal Night?

Source Naturals Ultra-Cal Night contains 15 active ingredients: Total Carbohydrates (1 g), Vitamin C (as Ascorbic Acid, Calcium Ascorbate, Magnesium Ascorbate, Manganese Ascorbate) (72 mg), Vitamin D3 (as Cholecalciferol) (50 IU), Vitamin K (250 mcg), Vitamin B6 (as Pyridoxine Hydrochloride) (5 mg), Folate (as Folic Acid) (50 mcg), and 9 more. Notable high-dose ingredients include Vitamin K at 313% DV, Vitamin B6 at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Source Naturals Ultra-Cal Night safe to take?

Source Naturals Ultra-Cal Night 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 Source Naturals a trustworthy supplement brand?

Source Naturals receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1982 and headquartered in Scotts Valley, CA, USA, the company offers 837 products in their lineup. They hold 1 verified certifications including Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

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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.