What is the difference between Natural Factors Calcium Citrate, 350 mg, 90 Tablets and KAL Calcium Citrate D-3, 90 Tablets?

Natural Factors Calcium Citrate, 350 mg, 90 Tablets contains 1 active ingredients, while KAL Calcium Citrate D-3, 90 Tablets contains 2 active ingredients. Compare serving sizes, ingredient amounts, and daily values on this page.

Which supplement has more ingredients: Calcium Citrate, 350 mg, 90 Tablets or Calcium Citrate D-3, 90 Tablets?

KAL Calcium Citrate D-3, 90 Tablets has more active ingredients (2) compared to Natural Factors Calcium Citrate, 350 mg, 90 Tablets (1).

Natural Factors Calcium Citrate vs KAL Calcium Citrate D-3

Side-by-side supplement facts comparison

Buy on iHerb

Natural Factors

Calcium Citrate, 350 mg, 90 Tablets

4.8(13,411)·

Adequate calcium as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis in later life. Isura™: Non-GMO: Documentation ✔ Mass Spec: Lab Tested ✔

Buy on iHerb

KAL

Calcium Citrate D-3, 90 Tablets

4.8(675)·

Discussion: KAL® Calcium Citrate D-3 is a high potency formula, designed for superior absorption. Calcium is intended to provide nutritive support for healthy bones and teeth. Vitamin D has been added to support Calcium absorption and utilization by the body. ActivTab™ technology guarantees tablet disintegration within 30 minutes according to USP standards.

Buy on iHerb

At a Glance

Verdict

Calcium Citrate provides 350 mg of calcium per tablet, while Calcium Citrate D-3 delivers 1,000 mg plus 1,000 IU of vitamin D per serving. The trade-off is a lower calcium dose without vitamin D vs. a higher dose with added D-3.

Who each is for

Natural Factors Calcium Citrate

You want a straightforward calcium citrate supplement without added vitamins.
Calcium Citrate provides 350 mg of calcium per tablet, suitable for lower-dose needs.
You prefer a tablet format without additional ingredients.
Calcium Citrate is a good option if you already get vitamin D from other sources.

KAL Calcium Citrate D-3

You want a higher calcium dose of 1,000 mg per serving.
Calcium Citrate D-3 includes 1,000 IU of vitamin D to support calcium absorption.
You need both calcium and vitamin D in one supplement.
Calcium Citrate D-3 delivers a substantial calcium amount in a two-tablet serving.

At a Glance

Processing analysis…

Ingredient Comparison

Total mg Per Serving

Calcium Citrate, 350 mg, 90 Tablets

Calcium Citrate D-3, 90 Tablets

—

0 servings per container

30 servings per container

1 shared ingredients

0 only in Calcium Citrate, 350 mg, 90 Tablets

1 only in Calcium Citrate D-3, 90 Tablets

Calcium Citrate, 350 mg, 90 Tablets

Natural Factors · 1 Tablet

Calcium Citrate, 350 mg, 90 Tablets

Natural Factors · 1 Tablet

Ingredient	Amount	DV
Calcium (citrate)	350 mg	27%

† Daily Value not established

Calcium Citrate D-3, 90 Tablets

KAL · 3 Tablets

Calcium Citrate D-3, 90 Tablets

KAL · 3 Tablets

Ingredient	Amount	DV
Vitamin D (as Cholecalciferol) (Supplying 1,000 IU of Vitamin D-3)	25 mcg	125%
Calcium (from Calcium Citrate)	1,000 mg	77%

† Daily Value not established

Other Ingredients Analysis

Shared (1)

Analysis of inactive ingredients for dietary restrictions, allergens, and artificial additives.

Calcium Citrate, 350 mg, 90 Tablets

Natural Factors

100

Excellent

Other Ingredients

Croscarmellose sodium, coating (carbohydrate gum (cellulose), glycerin), magnesium stearate (vegetable grade).

Warnings

Contains magnesium stearate (may not be vegan)

Positives

No artificial colors or flavors detectedNo common allergens

Calcium Citrate D-3, 90 Tablets

KAL

100

Excellent

Other Ingredients

Cellulose, croscarmellose sodium, stearic acid, silica and magnesium stearate.

Warnings

Contains magnesium stearate (may not be vegan)

Positives

No artificial colors or flavors detectedNo common allergens

How Clean Score is Calculated

Each positive: +5 points

Each warning or concern: −10 points

Serving Information

Detail	Calcium Citrate, 350 mg, 90 Tablets	Calcium Citrate D-3, 90 Tablets
Serving Size	1 Tablet	3 Tablets
Servings Per Container	—	30
Package Quantity	90 count	90 count

Certifications & Claims

Calcium Citrate, 350 mg, 90 Tablets

No certifications listed

Calcium Citrate D-3, 90 Tablets

Gluten-Free

Browse more comparisons in

Compare Calcium Citrate Supplements: Ingredients & Supplement Facts

Natural Factors Calcium Citrate vs KAL Calcium Citrate D-3

Calcium Citrate, 350 mg, 90 Tablets

Calcium Citrate D-3, 90 Tablets

At a Glance

Verdict

Who each is for

Natural Factors Calcium Citrate

KAL Calcium Citrate D-3

At a Glance

Ingredient Comparison

Total mg Per Serving

Calcium Citrate, 350 mg, 90 Tablets

Calcium Citrate, 350 mg, 90 Tablets

Calcium Citrate D-3, 90 Tablets

Calcium Citrate D-3, 90 Tablets

Other Ingredients Analysis

Calcium Citrate, 350 mg, 90 Tablets

Calcium Citrate D-3, 90 Tablets

Serving Information

Certifications & Claims

Browse more comparisons in

At a Glance

Verdict

Who each is for

Natural Factors Calcium Citrate

KAL Calcium Citrate D-3

What you get from each

Natural Factors Calcium Citrate

KAL Calcium Citrate D-3

Key Differences