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, Dietary Supplement for Bone Support, 130 Tablets

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

Product ID: 427538250

Details

Brand
Nature Made
Flavour
No Artificial
Item form
Tablet
Primary supplement type
Calcium
Unit count
130 Count

💊500mg Calcium per tablet

☀️Vitamin D3 for enhanced absorption

🇺🇸Made in USA, USP verified quality

Description

💪 Elevate your bone game with Nature Made’s powerhouse duo!

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 for a 2+ month supply, easy to integrate into your routine
TRUSTED QUALITY ASSURANCE - USP verified for potency and purity, made in the USA
STRONG BONES STRONGER YOU - 500mg Calcium supports optimal bone density daily

Nature Made Calcium 500 mg with Vitamin D3 is a premium dietary supplement designed to support bone strength and health. Each tablet delivers 500mg of Calcium paired with Vitamin D3 to optimize absorption. Made in the USA with globally sourced, gluten-free ingredients, this USP-verified formula contains no artificial flavors or colors. With 130 tablets per bottle, it offers a convenient, trusted solution for adults seeking to maintain strong bones and overall wellness.

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 5,295 Reviews
Diet Type	Gluten Free
Flavor	No Artificial Flavors
Flavour	No Artificial Flavors
Global Trade Identification Number	00031604025175
Item Form	Tablet
Item Weight	7.9 Ounces
Item form	Tablet
Manufacturer	Nature Made
Manufacturer Part Number	2517
Material Type Free	No Artificial Flavors
Model Number	2517
Number of Items	1
Primary Supplement Type	Calcium
Primary supplement type	Calcium
Product Benefits	Immune Support,Bone Strength
Product benefits	Immune Support,Bone Strength
UPC	031604025175
Unit Count	130 Count
Unit count	130 Count

Reviews

J**H

Quality

Fast delivery. Just what I need. Bought multiple times now. Will again in the future

1.07.2026

D**N

Good quality and fast delivery

27.05.2021

A**R

Nice

9.06.2025

T**X

Works. Well tolerated - hypoPARAthyroidism

For someone who has hypoPARAthyroidism, this is my lifeline.

17.07.2026

P**N

World class company by USA

Just too good

30.06.2025

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