What's the difference between Calcium citrate and calcium carbonate

The difference between the two supplements include (a) the percentage of elemental calcium provided per 100mg, and (b) the way the body absorbs the supplement. Calcium carbonate is made up of 40% elemental calcium and 60% carbonate ingredient, so one 600mg tablet provides 240mg calcium. Calcium Citrate is made up of 20% elemental calcium and 80% citrate ingredient, so one 600mg tablet provides 120mg calcium. While you are technically getting more elemental calcium from a Calcium carbonate supplement, Calcium citrate supplements are absorbed more easily than calcium carbonate. They can be taken on an empty stomach and are also more readily absorbed by people who take acid-reducing heartburn medications.

What is the Expiration date?

the date should be on the bottle or box it comes in

is the bottle printed with "enter code for wellness rewards points... " right of the nature made brand in the green area? the amazon's picture has .

Some have the code for the points and some products don't have a code. Nature Made started a new program in May of 2015. and most of the codes now go for a chance to win something. Go to http://www.naturemade.com/ If you have an account there. sign in with your e mail and check the FAQ's There it will tell you all about the program. I haven't purchased any Nature Made products that had any code at all on them in over a year. Hope this helps you.

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Nature Made Calcium 600 mg with Vitamin D3, Dietary Supplement for Bone Support, 220 Tablets

Nature Made Calcium 600 mg with Vitamin D3, Dietary Supplement for Bone Support, 220 Tablets

Product ID: 2217325

Details

Brand
Nature Made
Flavor
Unflavored
Item Form
Tablet
Primary Supplement Type
Calcium D
Unit Count
220 Count

💊600 mg Calcium per tablet

☀️Vitamin D3 boosts Calcium absorption

🇺🇸Made in USA, USP verified quality

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VT8022

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Nature Made
Flavor
Unflavored
Item Form
Tablet

Description

💪 Elevate your bone game with Nature Made’s Calcium + D3 power!

CONVENIENT DAILY DOSE - 220 tablets per bottle for long-lasting bone support
PURE TRUSTED QUALITY - USP verified, gluten-free, no artificial flavors or colors
SUNSHINE VITAMIN POWER - Vitamin D3 enhances Calcium absorption for maximum benefit
STRONG BONES STRONGER YOU - 600 mg Calcium supports optimal bone density daily
MILLENNIAL APPROVED WELLNESS - Affordable, high-quality supplement trusted by thousands

Nature Made Calcium 600 mg with Vitamin D3 is a premium dietary supplement designed to support strong bones and improve Calcium absorption. Each gluten-free tablet delivers 600 mg of Calcium paired with Vitamin D3, verified by USP for purity and potency. With 220 tablets per bottle, it offers a convenient, long-term solution for adults seeking reliable bone health support made in the USA.

Specifications

ASIN	B002FH5I0I
Age Range Description	Adult
Allergen Information	Gluten Free
Best Sellers Rank	#1,141 in Health & Household ( See Top 100 in Health & Household ) #3 in Calcium Mineral Supplements #133 in Sales & Deals
Brand	Nature Made
Brand Name	Nature Made
Customer Reviews	4.7 out of 5 stars 26,893 Reviews
Diet Type	Gluten Free
Flavor	Unflavored
Global Trade Identification Number	00031604012120
Item Form	Tablet
Item Weight	0.93 Pounds
Manufacturer	Pharmavite LLC
Manufacturer Part Number	1212
Material Type Free	Gluten Free
Model Number	1212
Number of Items	1
Primary Supplement Type	Calcium, Vitamin D
Product Benefits	Bone & Joint Support
UPC	031604012120
Unit Count	220 Count

Reviews

B**A

12.03.2026

S**R

19.03.2026

K**T

11.04.2026

A**S

19.12.2025

C**Y

24.03.2026

T**R

21.03.2026

A**.

28.04.2026

D**.

12.04.2026

M**Z

20.04.2026

L**B

7.12.2025

M**.

4.10.2022

T**.

17.09.2025

A**A

24.07.2025

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