[This review was collected as part of a promotion.] I began taking these about a week before I had a physical and all my blood work came back great. After a few weeks I can notice a small boost in energy, but nothing too significant. I think these are good with other supplements rather than a stand alone pill.

[This review was collected as part of a promotion.] I've using doctors preferred nitric oxide and have been pleased with the results. The capsules are small and easy to swallow and have not odor. I noticed improved my energy levels and circulation. The product is easy to digest and absorb well without causing stomach discomfort. I also experience fast recovery after workouts. The recommended dosage is easy to follow and the bottle is sturdy and easy to store. This is convenient supplement that supports cardiovascular health, endurance and recovery when is taken as directed. The package is beautiful and catches your attention.

[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.

[This review was collected as part of a promotion.] 3 pills a day is a serving. No unpleasant side effects. Helps my blood flow. I've been taking and helps lower my blood pressure. Good value when you compare to other products. No unpleasant scents or taste.

[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

[This review was collected as part of a promotion.] I started taking this supplement and it has truly worked very well for me. I like that it doesn't smell at all, so you can take it easily. I feel much better since I started using it, stronger with more energy. Now I wake up more motivated; my body feels very energetic.

[This review was collected as part of a promotion.] This is my first time exploring this brand, and I am super satisfied. The bottle is big and so are the pills. I like that the product information is written in a larger size compared to other bottles in the market, where I can read the information easily. I typically take a pill before gum because it helps with my workout. I never had any stomach issues after taking the pill even though I have a sensitive stomach.

[This review was collected as part of a promotion.] Highly recommend. Quality ingredients. Easy to swallow with no aftertaste. As I have gotten older, my blood pressure has increased. I am not at a point for prescription medication, but wanted to try something like this to get ahead of it. So far, I am seeing a slight lowering of my blood pressure but most of all it has been staying more consistent vs. getting the spikes.

[This review was collected as part of a promotion.] I took these for two weeks and stomach issues started after the second day. After two weeks I stopped and after one week the stomach distress has gone away. Although the pills are easy enough to take I will not be taking them again.

[This review was collected as part of a promotion.] I really like this Doctors' Preferred Nitric Oxide Advantage. The tablets are easy to take and offer easy absorption. After using them consistently I noticed an improvement in my overall wellbeing. I appreciate that this product is made to support a healthy blood flow. I also like that this product does not make me feel jittery like other supplements have in the past. The bottle provides good value with 90 tablets. It's a Great alternative to traditional beet root supplements. Overall this is a quality product!