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 and Vitamin D Tablets, Tablets, 130-Count

Nature Made Calcium 500 Mg and Vitamin D Tablets, Tablets, 130-Count

Product ID: 116859213

Details

Brand
Nature Made
Item Form
Tablets
Primary Supplement Type
Calcium
Net Quantity
130.00 Count
Flavour
Unflavoured
Product Benefits
Energy

💊130 tablets for long-lasting supply

🦴500 mg calcium for strong bones

☀️Vitamin D boosts calcium absorption

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¥5711

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🦴 Elevate your daily health game with Nature Made’s bone-boosting duo!

TRUSTED QUALITY - Backed by a 4.7-star rating from over 5,300 health-conscious users
OPTIMIZED ABSORPTION - Vitamin D included to maximize calcium uptake and support energy management
PURE CLEAN FORMULA - No artificial colors, 100% vegetarian-friendly for mindful consumers
BONE STRENGTHENING POWER - 500 mg of calcium, the body's most abundant mineral, for resilient bones and teeth
SUSTAINED WELLNESS SUPPLY - 130 tablets to keep your health routine uninterrupted

Nature Made Calcium 500 mg with Vitamin D tablets offer a potent, vegetarian-friendly formula designed to support bone density and energy management. With 130 unflavored tablets per bottle, this trusted supplement ensures sustained intake of essential minerals, enhanced by Vitamin D for optimal absorption. Highly rated by thousands, it’s a clean, reliable choice for proactive adults committed to long-term wellness.

Specifications

ASIN	B004B8JGUW
Age Range Description	Adult
Brand	Nature Made
Customer Reviews	4.7 out of 5 stars 5,322 Reviews
Diet Type	Vegetarian
Flavor	Unflavoured
Flavour	Unflavoured
Global Trade Identification Number	00031604025175
Item Form	Tablets
Item Weight	7.9 Ounces
Manufacturer	Nature Made
Manufacturer Part Number	2517
Material Type Free	No Artificial Colours
Model number	2517
Net Quantity	130.00 Count
Number of Items	1
Primary Supplement Type	Calcium
Product Benefits	Energy Management
UPC	031604025175
Unit Count	130.00 Count
Warranty Description	no warranty available

Reviews

A**R

Nice

9.06.2025

P**N

World class company by USA

Just too good

30.06.2025

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

D**N

Good quality and fast delivery

27.05.2021

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

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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¥5711

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In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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TrustScore 4.5 | 7,300+ reviews

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