Doctor's Best - Vitamin D3 5000 IU - 360 Softgels
Nutrition and Supplements Vitamins and minerals Doctor's Best Vitamin D3 5000 Iu Softgels 360 What is Doctor & Best Vitamin D3? Doctor & Best Vitamin D3 is compatible with healthy bone density and structure, as it is required for optimal calcium absorption. More than that, this nutrient enhances and regulates immune function, supports optimal cardiovascular function and improves cellular function. It is made from D3, the natural form of vitamin D. Research shows that supplemental vitamin D3 (cholecalciferol) is significantly more efficient in converting to active vitamin D in the body than vitamin D2 (ergocalciferol). This makes vitamin D3 the preferred complementary form of this nutrient. Vitamin D deficiency is prevalent with more than 75% of Americans deficient in this nutrient. People living in the northern half of the United States are at increased risk of being deficient in vitamin D due to lack of sunlight. How does it work? Vitamin D from dietary intake or sun exposure requires two activation steps in the body. The first activation occurs in the liver, while the second activation occurs in the kidneys, allowing regulation of calcium metabolism. Vitamin D receptors are present throughout the body, in tissues such as skin, cartilage, heart, prostate, bones and intestines, so the second step of activation also takes place in local tissues.
Nutrition and Supplements Vitamins and minerals Doctor's Best Vitamin D3 5000 Iu Softgels 360 What is Doctor & Best Vitamin D3? Doctor & Best Vitamin D3 is compatible with healthy bone density and structure, as it is required for optimal calcium absorption. More than that, this nutrient enhances and regulates immune function, supports optimal cardiovascular function and improves cellular function. It is made from D3, the natural form of vitamin D. Research shows that supplemental vitamin D3 (cholecalciferol) is significantly more efficient in converting to active vitamin D in the body than vitamin D2 (ergocalciferol). This makes vitamin D3 the preferred complementary form of this nutrient. Vitamin D deficiency is prevalent with more than 75% of Americans deficient in this nutrient. People living in the northern half of the United States are at increased risk of being deficient in vitamin D due to lack of sunlight. How does it work? Vitamin D from dietary intake or sun exposure requires two activation steps in the body. The first activation occurs in the liver, while the second activation occurs in the kidneys, allowing regulation of calcium metabolism. Vitamin D receptors are present throughout the body, in tissues such as skin, cartilage, heart, prostate, bones and intestines, so the second step of activation also takes place in local tissues.
Nutrition and Supplements Vitamins and minerals Doctor's Best Vitamin D3 5000 Iu Softgels 360 What is Doctor & Best Vitamin D3? Doctor & Best Vitamin D3 is compatible with healthy bone density and structure, as it is required for optimal calcium absorption. More than that, this nutrient enhances and regulates immune function, supports optimal cardiovascular function and improves cellular function. It is made from D3, the natural form of vitamin D. Research shows that supplemental vitamin D3 (cholecalciferol) is significantly more efficient in converting to active vitamin D in the body than vitamin D2 (ergocalciferol). This makes vitamin D3 the preferred complementary form of this nutrient. Vitamin D deficiency is prevalent with more than 75% of Americans deficient in this nutrient. People living in the northern half of the United States are at increased risk of being deficient in vitamin D due to lack of sunlight. How does it work? Vitamin D from dietary intake or sun exposure requires two activation steps in the body. The first activation occurs in the liver, while the second activation occurs in the kidneys, allowing regulation of calcium metabolism. Vitamin D receptors are present throughout the body, in tissues such as skin, cartilage, heart, prostate, bones and intestines, so the second step of activation also takes place in local tissues.
Nutrition and Supplements Vitamins and minerals Doctor's Best Vitamin D3 5000 Iu Softgels 360 What is Doctor & Best Vitamin D3? Doctor & Best Vitamin D3 is compatible with healthy bone density and structure, as it is required for optimal calcium absorption. More than that, this nutrient enhances and regulates immune function, supports optimal cardiovascular function and improves cellular function. It is made from D3, the natural form of vitamin D. Research shows that supplemental vitamin D3 (cholecalciferol) is significantly more efficient in converting to active vitamin D in the body than vitamin D2 (ergocalciferol). This makes vitamin D3 the preferred complementary form of this nutrient. Vitamin D deficiency is prevalent with more than 75% of Americans deficient in this nutrient. People living in the northern half of the United States are at increased risk of being deficient in vitamin D due to lack of sunlight. How does it work? Vitamin D from dietary intake or sun exposure requires two activation steps in the body. The first activation occurs in the liver, while the second activation occurs in the kidneys, allowing regulation of calcium metabolism. Vitamin D receptors are present throughout the body, in tissues such as skin, cartilage, heart, prostate, bones and intestines, so the second step of activation also takes place in local tissues.
in 36 offers
The lowest price for Doctor's Best - Vitamin D3 5000 IU - 360 Softgels right now is $11.75 at iHerb, compared across 27 retailers.
The all-time low was $8.41 on 18 July 2025 — today's price is 40% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 16 Aug 2026.
Last updated at 16/08/2026 17:03:17
Doctor's Best Best Vitamin D3 5000Iu 180 Sg
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Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 180 Softgels
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Vitamin D3 1000IU - 180 Softgels
14-day returns
Doctor's Best Vitamin D3 1000IU 180 Softgels
Delivery $12.62
originally posted on iherb.com
Doctor's Best D3 125 mcg is a standout vitamin D supplement renowned for its potency and reliability. Each serving provides 125 mcg of vitamin D3, a vital nutrient known for its role in supporting bone health and bolstering the immune system. The supplement comes in an easy-to-take softgel form, making it a convenient addition to daily routines.One of the reasons I trust Doctor's Best is its strong reputation as a reputable brand. They are known for using high-quality ingredients and following stringent manufacturing standards, ensuring the product's safety and effectiveness.Since incorporating Doctor's Best D3 125 mcg into my daily regimen, I've experienced positive changes in my overall health and energy levels. Especially during the winter months when sun ... MoreDoctor's Best D3 125 mcg is a standout vitamin D supplement renowned for its potency and reliability. Each serving provides 125 mcg of vitamin D3, a vital nutrient known for its role in supporting bone health and bolstering the immune system. The supplement comes in an easy-to-take softgel form, making it a convenient addition to daily routines.One of the reasons I trust Doctor's Best is its strong reputation as a reputable brand. They are known for using high-quality ingredients and following stringent manufacturing standards, ensuring the product's safety and effectiveness.Since incorporating Doctor's Best D3 125 mcg into my daily regimen, I've experienced positive changes in my overall health and energy levels. Especially during the winter months when sun exposure is limited, this supplement has been a valuable ally in maintaining optimal well-being.
originally posted on iherb.com
I was consulting my doctor and told her I had been taking a single dosage of 5000IU’s of Vitamin D3 (VD3) once a day. The duration hs been for over a week.Her response was that we would probably see higher values than normal range on the blood test.Test results: actually turned out i was 10 points below average than normal human index.I was very frustrated because a 5000IU is ALOT, even my doctor reacted and said 2000IU is MORE than enough.So, I researched and saw many complaints on Dr’s Best — being unreliable after a Chinese company bought it.On the bottle it says ingredients: Extra Virgin Oil, so yea.Downside has been very oily skin in my forehead and physical blood test being an actual bummer.If these reviews are old ir new ( or fabricated) I find ... MoreI was consulting my doctor and told her I had been taking a single dosage of 5000IU’s of Vitamin D3 (VD3) once a day. The duration hs been for over a week.Her response was that we would probably see higher values than normal range on the blood test.Test results: actually turned out i was 10 points below average than normal human index.I was very frustrated because a 5000IU is ALOT, even my doctor reacted and said 2000IU is MORE than enough.So, I researched and saw many complaints on Dr’s Best — being unreliable after a Chinese company bought it.On the bottle it says ingredients: Extra Virgin Oil, so yea.Downside has been very oily skin in my forehead and physical blood test being an actual bummer.If these reviews are old ir new ( or fabricated) I find it especially weird that nobody comments their actual blood work review.I now review iHerb an incredible unreliable customer review source and Dr’s Best products being absolutely humbug.If something as simple as Vitamin D is fake, then I would find it higly likley that any other source of products are fake too. Supplements is a multi billion dollar industry, and China is not reliable at all. So Be careful and choose your brands really carefully, never watch the “best comments” as they are either fabricated or outdated. Do your research and if possible take a blood test after a few weeks.The Quality was literally a joke, the size of the container is small and not too big.Package was nicely packed.Absorption was relatively quick as I noticed the oily skin after a couple of days.The bottle went in the trash 2 weeks after arrival as it was literally swallowing extra virgin oil without any physical proof of it being any Vitamin D or whatsoever in it.Do NOT purchase this, its BS
originally posted on iherb.com
I take 2 of these daily.Vitamin D is the PARENT COMPOUND from which spring various metabolites and signaling pathways!The Key to D is DAILY FLUX of the PARENT COMPOUND (Vitamin D3 )Then we can be replete in ALL metabolites and have ALL pathways operating OPTIMALLYMANY STUDIES ARE USELESS -MANY GUIDELINES, FALSE.New concepts about how the body utilizes Vitamin D beyond bone health (such as for immune function, gene regulation, and pregnancy/breastfeeding) have shed light on the importance of obtaining a daily dose of vitamin D3, versus doses at weekly, monthly, or longer intervals.Vitamin D3 is a relatively short-lived compound in the body with a half-life of less than 24 hours. With such a short half-life, dosing intervals of a week or greater can lead ... MoreI take 2 of these daily.Vitamin D is the PARENT COMPOUND from which spring various metabolites and signaling pathways!The Key to D is DAILY FLUX of the PARENT COMPOUND (Vitamin D3 )Then we can be replete in ALL metabolites and have ALL pathways operating OPTIMALLYMANY STUDIES ARE USELESS -MANY GUIDELINES, FALSE.New concepts about how the body utilizes Vitamin D beyond bone health (such as for immune function, gene regulation, and pregnancy/breastfeeding) have shed light on the importance of obtaining a daily dose of vitamin D3, versus doses at weekly, monthly, or longer intervals.Vitamin D3 is a relatively short-lived compound in the body with a half-life of less than 24 hours. With such a short half-life, dosing intervals of a week or greater can lead to depletion of vitamin D3 in the blood altogether.Can be better absorbed if taken in the morning along with Vitamin K2/MK-7
| Is Discontinued By Manufacturer | No |
| Product dimensions | 5.56 x 5.56 x 10.8 cm; 108.86 Grams |
| Item form | Softgels |
| Item dimensions L x W x H | 5.6 x 5.6 x 10.8 centimetres |
| Unit count | 360 Count |
Doctor's Best Best Vitamin D3 5000Iu 180 Sg
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!
Doctor's Best, Vitamin D3, 125 mcg (5,000 IU), 180 Softgels
Delivery $40
Doctor's Best, Vitamin D3, 25 mcg (1,000 IU), 180 Softgels
Delivery $40
Doctor's Best Vitamin D3 (1000IU) 180 sgels
Delivery $14.36
Vitamin D3 2000 IU, 180 Softgels, by Doctors Best
Delivery $12.74
Doctor's Best D3 125 mcg is a standout vitamin D supplement renowned for its potency and reliability. Each serving provides 125 mcg of vitamin D3, a vital nutrient known for its role in supporting bone health and bolstering the immune system. The supplement comes in an easy-to-take softgel form, making it a convenient addition to daily routines.One of the reasons I trust Doctor's Best is its strong reputation as a reputable brand. They are known for using high-quality ingredients and following stringent manufacturing standards, ensuring the product's safety and effectiveness.Since incorporating Doctor's Best D3 125 mcg into my daily regimen, I've experienced positive changes in my overall health and energy levels. Especially during the winter months when sun ... MoreDoctor's Best D3 125 mcg is a standout vitamin D supplement renowned for its potency and reliability. Each serving provides 125 mcg of vitamin D3, a vital nutrient known for its role in supporting bone health and bolstering the immune system. The supplement comes in an easy-to-take softgel form, making it a convenient addition to daily routines.One of the reasons I trust Doctor's Best is its strong reputation as a reputable brand. They are known for using high-quality ingredients and following stringent manufacturing standards, ensuring the product's safety and effectiveness.Since incorporating Doctor's Best D3 125 mcg into my daily regimen, I've experienced positive changes in my overall health and energy levels. Especially during the winter months when sun exposure is limited, this supplement has been a valuable ally in maintaining optimal well-being.
I was consulting my doctor and told her I had been taking a single dosage of 5000IU’s of Vitamin D3 (VD3) once a day. The duration hs been for over a week.Her response was that we would probably see higher values than normal range on the blood test.Test results: actually turned out i was 10 points below average than normal human index.I was very frustrated because a 5000IU is ALOT, even my doctor reacted and said 2000IU is MORE than enough.So, I researched and saw many complaints on Dr’s Best — being unreliable after a Chinese company bought it.On the bottle it says ingredients: Extra Virgin Oil, so yea.Downside has been very oily skin in my forehead and physical blood test being an actual bummer.If these reviews are old ir new ( or fabricated) I find ... MoreI was consulting my doctor and told her I had been taking a single dosage of 5000IU’s of Vitamin D3 (VD3) once a day. The duration hs been for over a week.Her response was that we would probably see higher values than normal range on the blood test.Test results: actually turned out i was 10 points below average than normal human index.I was very frustrated because a 5000IU is ALOT, even my doctor reacted and said 2000IU is MORE than enough.So, I researched and saw many complaints on Dr’s Best — being unreliable after a Chinese company bought it.On the bottle it says ingredients: Extra Virgin Oil, so yea.Downside has been very oily skin in my forehead and physical blood test being an actual bummer.If these reviews are old ir new ( or fabricated) I find it especially weird that nobody comments their actual blood work review.I now review iHerb an incredible unreliable customer review source and Dr’s Best products being absolutely humbug.If something as simple as Vitamin D is fake, then I would find it higly likley that any other source of products are fake too. Supplements is a multi billion dollar industry, and China is not reliable at all. So Be careful and choose your brands really carefully, never watch the “best comments” as they are either fabricated or outdated. Do your research and if possible take a blood test after a few weeks.The Quality was literally a joke, the size of the container is small and not too big.Package was nicely packed.Absorption was relatively quick as I noticed the oily skin after a couple of days.The bottle went in the trash 2 weeks after arrival as it was literally swallowing extra virgin oil without any physical proof of it being any Vitamin D or whatsoever in it.Do NOT purchase this, its BS
I take 2 of these daily.Vitamin D is the PARENT COMPOUND from which spring various metabolites and signaling pathways!The Key to D is DAILY FLUX of the PARENT COMPOUND (Vitamin D3 )Then we can be replete in ALL metabolites and have ALL pathways operating OPTIMALLYMANY STUDIES ARE USELESS -MANY GUIDELINES, FALSE.New concepts about how the body utilizes Vitamin D beyond bone health (such as for immune function, gene regulation, and pregnancy/breastfeeding) have shed light on the importance of obtaining a daily dose of vitamin D3, versus doses at weekly, monthly, or longer intervals.Vitamin D3 is a relatively short-lived compound in the body with a half-life of less than 24 hours. With such a short half-life, dosing intervals of a week or greater can lead ... MoreI take 2 of these daily.Vitamin D is the PARENT COMPOUND from which spring various metabolites and signaling pathways!The Key to D is DAILY FLUX of the PARENT COMPOUND (Vitamin D3 )Then we can be replete in ALL metabolites and have ALL pathways operating OPTIMALLYMANY STUDIES ARE USELESS -MANY GUIDELINES, FALSE.New concepts about how the body utilizes Vitamin D beyond bone health (such as for immune function, gene regulation, and pregnancy/breastfeeding) have shed light on the importance of obtaining a daily dose of vitamin D3, versus doses at weekly, monthly, or longer intervals.Vitamin D3 is a relatively short-lived compound in the body with a half-life of less than 24 hours. With such a short half-life, dosing intervals of a week or greater can lead to depletion of vitamin D3 in the blood altogether.Can be better absorbed if taken in the morning along with Vitamin K2/MK-7
I recently discovered a remarkable supplement that has become an integral part of my daily routine: Doctor's Best Vitamin D3. This exceptional product has exceeded my expectations in delivering the numerous benefits of vitamin D3, and here's why I highly recommend it.First and foremost, Doctor's Best Vitamin D3 provides a potent dosage of 125 mcg (5,000 IU) per softgel. Vitamin D3 is a crucial nutrient that plays a vital role in supporting immune function, bone health, mood regulation, and overall well-being. With each softgel, I am confident that I am providing my body with an optimal dose of vitamin D3.One of the standout features of this product is the quality and purity of the ingredients. Doctor's Best is a trusted brand known for their commitment to ... MoreI recently discovered a remarkable supplement that has become an integral part of my daily routine: Doctor's Best Vitamin D3. This exceptional product has exceeded my expectations in delivering the numerous benefits of vitamin D3, and here's why I highly recommend it.First and foremost, Doctor's Best Vitamin D3 provides a potent dosage of 125 mcg (5,000 IU) per softgel. Vitamin D3 is a crucial nutrient that plays a vital role in supporting immune function, bone health, mood regulation, and overall well-being. With each softgel, I am confident that I am providing my body with an optimal dose of vitamin D3.One of the standout features of this product is the quality and purity of the ingredients. Doctor's Best is a trusted brand known for their commitment to excellence, and their Vitamin D3 softgels undergo rigorous testing to ensure potency and absence of contaminants. This dedication to quality gives me peace of mind, knowing that I am consuming a safe and reliable supplement.Vitamin D3, often referred to as the "sunshine vitamin," is essential for individuals who may have limited sun exposure or struggle to obtain adequate levels of vitamin D through diet alone. Since incorporating Doctor's Best Vitamin D3 into my daily routine, I have experienced remarkable improvements in my overall well-being. I feel more energized, experience enhanced mood, and have noticed strengthened immune function.The softgels are easy to swallow, making them convenient to incorporate into my daily regimen. Additionally, the generous supply of 360 softgels per bottle ensures that I have a long-term, uninterrupted supply of vitamin D3, allowing me to consistently support my health and well-being.What sets Doctor's Best Vitamin D3 apart is its commitment to quality and transparency. The product is free from unnecessary fillers, preservatives, and common allergens, making it suitable for a wide range of individuals. This attention to detail reflects the brand's dedication to providing a superior supplement that meets the needs and preferences of their customers.In conclusion, Doctor's Best Vitamin D3 has become an indispensable part of my daily supplement routine. Its potent dosage, high-quality ingredients, and commitment to excellence make it a standout choice for anyone seeking to optimize their immune system, support bone health, and enhance overall vitality. I highly recommend Doctor's Best Vitamin D3 as a reliable and effective option for harnessing the benefits of this essential nutrient
I am pleased to provide a positive review of Doctor's Best Vitamin D3 supplement. This product is an excellent source of high-quality vitamin D3, which is essential for maintaining healthy bones, immune function, and overall well-being.The 360 softgels in this bottle are an ideal size for long-term use, ensuring that you have a steady supply of vitamin D3 to support your health needs. The softgels are easy to swallow, and the recommended dosage of one softgel per day makes it simple to incorporate into your daily supplement routine.I have personally experienced the benefits of this vitamin D3 supplement, including improved immune function and increased bone density. Additionally, it has been found to be helpful for reducing the risk of certain diseases and ... MoreI am pleased to provide a positive review of Doctor's Best Vitamin D3 supplement. This product is an excellent source of high-quality vitamin D3, which is essential for maintaining healthy bones, immune function, and overall well-being.The 360 softgels in this bottle are an ideal size for long-term use, ensuring that you have a steady supply of vitamin D3 to support your health needs. The softgels are easy to swallow, and the recommended dosage of one softgel per day makes it simple to incorporate into your daily supplement routine.I have personally experienced the benefits of this vitamin D3 supplement, including improved immune function and increased bone density. Additionally, it has been found to be helpful for reducing the risk of certain diseases and improving mood.Overall, I highly recommend Doctor's Best Vitamin D3 supplement as an effective and affordable way to support your body's vitamin D needs and overall health. Its high quality and potency make it a great choice for anyone looking to maintain healthy bones and immune function, especially those who may not get enough vitamin D from sunlight or their diet.
Taking vitamin D3 soft gels have made an improvement in my vitamin D levels as measured by my doctor via blood work. I’ve had an ongoing problem with low vitamin D3 for decades and was taking another 5000IU gel was keeping me in the middle of the range on my blood tests.These are doing the exact same for me. The gels in this brand look virtually identical to the ones I took before. These D3 soft gels are keeping me at the middle of the range for Vitamin D3 blood level. With these I get about twice the number of gels for about the same price as my previous brand. As far as I can tell they work just the same for me.These small gels are very easy for me to swallow along with my other daily medications and supplements. I don't notice any taste from them. I ... MoreTaking vitamin D3 soft gels have made an improvement in my vitamin D levels as measured by my doctor via blood work. I’ve had an ongoing problem with low vitamin D3 for decades and was taking another 5000IU gel was keeping me in the middle of the range on my blood tests.These are doing the exact same for me. The gels in this brand look virtually identical to the ones I took before. These D3 soft gels are keeping me at the middle of the range for Vitamin D3 blood level. With these I get about twice the number of gels for about the same price as my previous brand. As far as I can tell they work just the same for me.These small gels are very easy for me to swallow along with my other daily medications and supplements. I don't notice any taste from them. I appreciate the value of getting twice as many for the same price, but best of all they work well for me and I'm very pleased and giving them 5 stars.
| Is Discontinued By Manufacturer | No |
| Product dimensions | 5.56 x 5.56 x 10.8 cm; 108.86 Grams |
| Item form | Softgels |
| Item dimensions L x W x H | 5.6 x 5.6 x 10.8 centimetres |
| Unit count | 360 Count |
