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Customer reviews for Doctors' Preferred Nitric Oxide Advantage, Blood Flow, 90 Caplets for
Doctors' Preferred Nitric Oxide Advantage, Blood Flow, 90 Caplets
4.5 out of 5 stars
stars
81 ratings81 reviews
  1. 5 stars59% (48)
  2. 4 stars30% (24)
  3. 3 stars10% (8)
  4. 2 stars0% (0)
  5. 1 star1% (1)
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Showing 31-40 of 81 reviews
Jun 30, 2026
Reviewer name: YengK
4 out of 5 stars
4 out of 5 stars review

Value for money

[This review was collected as part of a promotion.] I have been taking this to support circulation in my body and overall I don’t notice a significant difference but I have noticed that with taking this, my blood pressure has been lower than normal. The only reason why I didn’t give it five stars is for the serving size. It feels a lot to add onto of what my normal routine is.

Review from Healthy Directions
Helpful?3C0JE2VIKWZ920481068045
Jun 25, 2026
Reviewer name: AngelenaW
3 out of 5 stars
3 out of 5 stars review

Easy to take supplement to increase circulation.

[This review was collected as part of a promotion.] Not sure if these are doing anything yet, since I haven’t been taking them that long, but I will continue to take them. The ingredients are very straightforward and seem pretty natural. The instructions are easy to follow, just take three a day. The bottle was easy to open and the pills are easy to swallow. No weird odor or flavor.

Review from Healthy Directions
Helpful?3C0JE2VIKWZ920481068045
Jun 23, 2026
Reviewer name: DaianeG
5 out of 5 stars
5 out of 5 stars review

Good

[This review was collected as part of a promotion.] It’s my first time taking nitric oxide and I like it because it’s good for the blood circulation. I have varicose veins and believe this is going to help me with it . I can’t tell if it’s working because it takes time to see diference. I’m glad I was able to try it

Review from Healthy Directions
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Jul 7, 2026
Reviewer name: RachelW
3 out of 5 stars
3 out of 5 stars review

May work for some but not all

[This review was collected as part of a promotion.] Pills are somewhat large and you need to take 3 daily; may be off putting for people who have trouble swallowing large/multiple pills at once. They are solid tablets that won’t leak like gel capsules. No aftertaste was noted or weird burps unlike fish oil supplements. My husband and I tried these and didn’t notice much of a difference compared to using liquid beet root and eating other foods that increase nitric oxide. No noticeable increase in energy, blood pressure, and no changes in male sexual performance. This may work well for some people if eating nitric oxide boosting foods and/or swallowing pills is preferred to a liquid beet supplement.

Review from Healthy Directions
Helpful?3C0JE2VIKWZ920481068045
Jul 28, 2026
Reviewer name: LauraR
5 out of 5 stars
5 out of 5 stars review

Heart Healthy

[This review was collected as part of a promotion.] Doctors Preferred Nitric Oxide Advantage does give me extra energy. You take 3 tablets once daily and you get 90 tablets. I love that is Herat healthy. Definitely will buy again. Recommend it!

Review from Healthy Directions
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Jul 29, 2026
Reviewer name: MuhammadH
5 out of 5 stars
5 out of 5 stars review

Good product

[This review was collected as part of a promotion.] Really easy instruction to use it has minty herb smell taste like dry vegetable 30 serving per bottle. Serving size is three tablets tablets are small size.

Review from Healthy Directions
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Jul 30, 2026
Reviewer name: JosephM
5 out of 5 stars
5 out of 5 stars review

Works great

[This review was collected as part of a promotion.] I’ve been taking these daily over the past month and I definitely feel the difference! Overall I would recommend these to anyone who struggles with blood flow!

Review from Healthy Directions
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Aug 7, 2026
Reviewer name: SulmanK
5 out of 5 stars
5 out of 5 stars review

Definitely try

[This review was collected as part of a promotion.] Very impressed with this product. Have felt greater energy levels throughout the day, and see improvement in working out. The tablets are easy to take without any word after taste.

Review from Healthy Directions
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Aug 2, 2026
Reviewer name: HeatherP
4 out of 5 stars
4 out of 5 stars review

Easy to swallow. Not stinky.

[This review was collected as part of a promotion.] If you like small easy to swallow vitamins this is it. This pill has a very low smell. It seems to absorb very well. No upset tummy issues after taking. Easy disposal of container when empty.

Review from Healthy Directions
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Aug 3, 2026
Reviewer name: QuanW
5 out of 5 stars
5 out of 5 stars review

Wonderful way to boost health conditions

[This review was collected as part of a promotion.] I have been taking these for some time now and they are very easy to take and not to hard to swallow or harsh taste. They also dissolve pretty quick and work very well.

Review from Healthy Directions
Helpful?3C0JE2VIKWZ920481068045