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 500 mg with Vitamin D3, Calcium and Vitamin D Supplement for Bone Support, 130 Tablets

Nature Made Calcium 500 mg with Vitamin D3, Calcium and Vitamin D Supplement for Bone Support, 130 Tablets

Product ID: 6371815

Details

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

💊500mg Calcium per tablet

☀️Vitamin D3 for enhanced absorption

🛡️USP Verified quality assurance

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€ 26.76

Duties & taxes included

In stock

Sold byAmazon SpainDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🦴 Elevate your bone game with Nature Made’s trusted Calcium + D3 combo!

CLEAN PURE FORMULA - Gluten-free, no artificial flavors or colors—pure wellness
SUNSHINE VITAMIN BOOST - Vitamin D3 enhances Calcium absorption for maximum benefit
CONVENIENT DAILY SUPPORT - 130 tablets per bottle, easy to integrate into your routine
TRUSTED QUALITY ASSURANCE - USP Verified for potency and ingredient integrity
STRONG BONES STRONGER YOU - 500mg Calcium supports optimal bone density daily

Nature Made Calcium 500 mg with Vitamin D3 delivers a potent daily dose of Calcium paired with Vitamin D3 to enhance absorption and support bone strength. This gluten-free, no artificial flavor supplement is USP Verified, ensuring premium quality and purity. With 130 easy-to-swallow tablets per bottle, it’s the perfect addition to any adult’s wellness routine aiming for strong, healthy bones.

Specifications

ASIN	B004B8JGUW
Age Range Description	Teen, Adult
Allergen Information	Gluten Free
Brand	Nature Made
Brand Name	Nature Made
Customer Reviews	4.7 out of 5 stars 5,587 Reviews
Diet Type	Gluten Free
Flavor	Unflavored
Global Trade Identification Number	00031604025175
Item Form	Tablet
Item Weight	7.9 Ounces
Manufacturer	Nature Made
Manufacturer Part Number	2517
Material Type Free	No Artificial Flavors
Model Number	2517
Number of Items	1
Primary Supplement Type	Calcium
Product Benefits	Bone & Joint Support
UPC	031604025175
Unit Count	130 Count

Reviews

D**J

High quality Calcium supplement

Exactly what I was looking for in a calcium supplement. Easy to swallow and the perfect 500mg recommended Highly recommend this Nature Made purchase

4.03.2026

M**O

Great value

13.02.2026

T**R

Great Daily Calcium Supplement

I’ve been taking Nature Made Calcium One A Day and it’s been a reliable way to support my bone health. The tablets are easy to take, gentle on the stomach, and I appreciate that it only requires one per day. A simple, effective supplement I plan to keep u

16.09.2025

L**N

Plain white pills not too difficult to swallow

Ordered these purely to take exact amount of mg from my doctor’s advice. The white pills are not too difficult to swallow, but a plain white pills that I wish in a different color or shapes. I still am glad to find pills exact for my daily consumption, which wasn’t easy at stores near me.

13.09.2025

J**B

Terrific Supplement

Consistently quality product. Great price.

3.12.2025

R**N

Exactly what I wanted.

Couldn't find in my local stores. Large size pill, little hard to swallow sometimes. Will purchase again.

7.01.2026

H**E

Don't use more than suggested. See your doctor

Just what the doctor ordered

29.12.2025

L**S

Excellent

2.01.2026

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