Product Description:Vitamin D3 is essential for absorption of calcium and necessary support for healthy bones, teeth and immune system. Vitamin D also supports breast and colon health. Gluten free. No added sugar, yeast, preservatives, artificial flavours or colours. 21st Century vitamins and supplements are manufactured in a CGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. This statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Product Description:Vitamin D3 is essential for absorption of calcium and necessary support for healthy bones, teeth and immune system. Vitamin D also supports breast and colon health. Gluten free. No added sugar, yeast, preservatives, artificial flavours or colours. 21st Century vitamins and supplements are manufactured in a CGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. This statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.
in 3 offers
The lowest price for 21st Century Vitamin D3-1000, Easy-to-Swallow Smaller Tablets, Value Size - 500 tablets right now is $18.81 at iHerb, compared across 3 retailers.
The all-time low was $8.60 on 9 May 2026 — today's price is 119% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 June 2026.
21st Century Vitamin D3-1000, Easy-to-Swallow Smaller Tablets, Value Size - 500 tablets
Product Description:Vitamin D3 is essential for absorption of calcium and necessary support for healthy bones, teeth and immune system. Vitamin D also supports breast and colon health. Gluten free. No added sugar, yeast, preservatives, artificial flavours or colours. 21st Century vitamins and supplements are manufactured in a CGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. This statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Product Description:Vitamin D3 is essential for absorption of calcium and necessary support for healthy bones, teeth and immune system. Vitamin D also supports breast and colon health. Gluten free. No added sugar, yeast, preservatives, artificial flavours or colours. 21st Century vitamins and supplements are manufactured in a CGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. This statement has not been evaluated by the food and drug administration. This product is not intended to diagnose, treat, cure or prevent any disease.
Last updated at 07/06/2026 03:30:07
21st Century, 维生素 D3,25 微克(1,000 国际单位),500 片
Delivery $40
Vitamin D3 1000 IU 500 таблетки | 21st Century Healthcare
Free delivery between Tue – Wed
21st Century, Vitamin D3, 25 Mcg (1,000 Iu), 500 Tablets
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on iherb.com
21st Century Vitamin D3 is a great value. This is 500 tablets. It is well made and easy to take. The dosage of 25mcg is good for most people. It is a quality D3. Enjoy!
originally posted on iherb.com
why they have to add useless Calcium (from Calcium Carbonate) ?carbonate is the worst bio available calciumis it because doctors say you have to take both ?most people have too much free flowing calcium in the body causing aches & pains and should not take any calcium at alland get more magnesium, but this brand might just add some magnesium oxide in some of their products, but the oxide is only good for constipated people
originally posted on iherb.com
I was so glad to see this D3 available in 500 tablets package! We have been taking this vitamin-d from 21s century brand for some years. We live in the north of Europe and need extra dosage of vitamin-d to boost our immune system over the winter when there is no sun. It is very good vitamin, we have no deficiency now. The tablets are small and easy to swallow. The price is incredible as vitamins are rather expensive in our country.
| General | |
| Units in Package | 500 |
| Directions | For adults, take one (1) tablet daily, preferably with a meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage. Store at room temperature. |
| Ingredients | Other Ingredients: Cellulose, Stearic Acid, Croscarmellose Sodium, Silicon Dioxide, Magnesium Stearate. |
| Warnings | Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. |
21st Century, 维生素 D3,25 微克(1,000 国际单位),500 片
Delivery $40
Vitamin D3 1000 IU 500 таблетки | 21st Century Healthcare
Free delivery between Tue – Wed
21st Century, Vitamin D3, 25 Mcg (1,000 Iu), 500 Tablets
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
21st Century Vitamin D3 is a great value. This is 500 tablets. It is well made and easy to take. The dosage of 25mcg is good for most people. It is a quality D3. Enjoy!
why they have to add useless Calcium (from Calcium Carbonate) ?carbonate is the worst bio available calciumis it because doctors say you have to take both ?most people have too much free flowing calcium in the body causing aches & pains and should not take any calcium at alland get more magnesium, but this brand might just add some magnesium oxide in some of their products, but the oxide is only good for constipated people
I was so glad to see this D3 available in 500 tablets package! We have been taking this vitamin-d from 21s century brand for some years. We live in the north of Europe and need extra dosage of vitamin-d to boost our immune system over the winter when there is no sun. It is very good vitamin, we have no deficiency now. The tablets are small and easy to swallow. The price is incredible as vitamins are rather expensive in our country.
Got this for my hubby and he's been taking it for a month. The tablets are not too big, making it easy to swallow (he doesn't like drinking water when taking pill. Urgh men :)). It's a super deal at this price point, and it's enough to last a year and a half, so will see if this improves his D3 level. Overall, happy with the purchase.
These seem to work great. I bought this for my parents many months aho. My mother is prone to getting flu whenever the climate becomes cold since becoming a senior citizen and my father have always had trouble staying asleep continouosly, being diabetic makes him get up at night to go pee, and then he wouldnt be able to sleep soundly again. I bought this about 3 months aho, and made them start on it asap(my father just a month ago, but boy is the effect quite noticeable). Its rainy season now from where i am, and so far no sniffles, fever or body aches yet from my mom. They both claim they seem to sleep better since starting on it. For my father, it was essential for me he get it being his immunity is really mucked up being diabetic, and his nit getting sunlight on ... MoreThese seem to work great. I bought this for my parents many months aho. My mother is prone to getting flu whenever the climate becomes cold since becoming a senior citizen and my father have always had trouble staying asleep continouosly, being diabetic makes him get up at night to go pee, and then he wouldnt be able to sleep soundly again. I bought this about 3 months aho, and made them start on it asap(my father just a month ago, but boy is the effect quite noticeable). Its rainy season now from where i am, and so far no sniffles, fever or body aches yet from my mom. They both claim they seem to sleep better since starting on it. For my father, it was essential for me he get it being his immunity is really mucked up being diabetic, and his nit getting sunlight on his skin anymore. I did notice how he sleeps contolinously for about 8 hours now, whereas before its just a 5 to 6 hrs only. I do believe this will also help in this pandemic period to blhelp biost their immunity.
Vitamin D3 is a must fkr this pandemic situation. I hope to get healthier body immune with this daily consumption. Expired date also quite long
| General | |
| Units in Package | 500 |
| Directions | For adults, take one (1) tablet daily, preferably with a meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage. Store at room temperature. |
| Ingredients | Other Ingredients: Cellulose, Stearic Acid, Croscarmellose Sodium, Silicon Dioxide, Magnesium Stearate. |
| Warnings | Keep out of reach of children. Do not use if product appears to be tampered with or seal is broken. |
