Skip to Main Content
Sam's Club
Sam's Club
All Departments
All Services
Customer reviews for Optimum Nutrition, Amino Energy + Focus, Pre-Workout, Watermelon, 1.42 lbs. for
Optimum Nutrition, Amino Energy + Focus, Pre-Workout, Watermelon, 1.42 lbs.
4.6 out of 5 stars
stars
231 ratings169 reviews
  1. 5 stars76% (175)
  2. 4 stars15% (34)
  3. 3 stars5% (11)
  4. 2 stars2% (4)
  5. 1 star3% (7)
Sort by |
Showing 121-130 of 169 reviews
Jul 20, 2025
kellyr343_2712
5 out of 5 stars review

Energized and no food cravings

[This review was collected as part of a promotion.] In the last week iv had the best energy. Which makes my night sleep awesome because I’m not having to take a nap after work. This has the best taste. Watermelon Jello rancher is the exact taste flavor. not only do I feel energized I don’t feel so bloated this drink has really helped with food cravings and energy. I highly recommend!!

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
reply from Optimum Nutrition

Follow Amino Energy for the best anytime energy!

Mar 11, 2023
jrocks777
5 out of 5 stars review

Electrolytes taste great

[This review was collected as part of a promotion.] I love the taste of Watermelon Splash, it tastes like candy, reminds me of the Lucas watermelon dry powder candy. NO aftertaste, a smooth sweet taste. Works for when you feel sick, ill, dehydration. It kicks in a span of 1 to 5 minutes if not almost immediately. This has caffeine in it and wakes me up in the morning.

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Jul 17, 2025
parthp7_6973
5 out of 5 stars review

My Go to Pre-Workout

[This review was collected as part of a promotion.] Flavor & Mixability: 5/5 The flavor is fantastic—just the right balance of sweetness without being overpowering. It dissolves easily, but since the scoop is small, I’d recommend using a funnel if you’re mixing it straight into a water bottle. Value & Servings: 5/5 At 72 servings per container (using 2 scoops), this is one of the best deals out there. It lasts forever, making it a budget-friendly choice for daily use. Energy & Performance: 5/5 With 100mg of caffeine per 2-scoop serving, the energy boost is smooth and steady—no jitters or crashes. I started with half a dose to test tolerance and had no issues working my way up. Perfect for focus and endurance without feeling overstimulated. Extras: The added electrolytes and amino acids are a nice touch. I noticed better hydration and less fatigue during long sessions, especially on high-intensity days. Final Thoughts: 5/5 This has become my staple pre-workout. Great taste, reliable energy, and unbeatable value. Whether you’re new to supplements or a seasoned lifter, it’s easy to adjust and delivers every time. Highly recommend!

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Mar 29, 2023
markk37
5 out of 5 stars review

do you like apples?

[This review was collected as part of a promotion.] even if you like apples, the watermelon of this flavor profile truly slaps. it kicks harder than michael phelps playing against leo messi for the championship. talk about an energy boost! but do you really need it? one sip and you will be buzzin

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Jul 22, 2025
helened10_4342
5 out of 5 stars review

Good drink

[This review was collected as part of a promotion.] My son is going to gym every day and he works as a lifeguard so he needs energy and nutritions on the go. This Amino splash powder is perfect for him to take on the go for buzy day. It helps to hydrate on the hot day and great for pre gym. Taste good and refreshing and comes in a decent size.

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Mar 28, 2023
Glacius700
5 out of 5 stars review

Ideal choice for pre-workout.

[This review was collected as part of a promotion.] I've been using Optimum Nutrition AMIN.O. Energy and Electrolytes for over two weeks and it's the perfect balance of flavor and hydration I need. This makes it a great option for those who are watching their calorie intake or following a strict diet.

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Jul 18, 2025
dinagj_6273
5 out of 5 stars review

I love it!

[This review was collected as part of a promotion.] The taste of the watermelon splash is delicious and doesn't have an aftertaste. I like to drink it with cold water. The powder is fine and mixes easily. I have more energy than before and feel more hydrated. I love it!

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
reply from Optimum Nutrition

Taste, hydration, Amino Energy has all the bases covered!

Jul 15, 2025
ashleyl865_5542
5 out of 5 stars review

Amazing Taste!

[This review was collected as part of a promotion.] This watermelon Amino energy taste amazing! I look forward to waking up and enjoying it before my morning workout. It’s a great price point. It gives me the energy I need to push a little harder working out.

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
reply from Optimum Nutrition

Amino Energy is always there for you if you need a spotter!

Mar 15, 2023
Anonymous
5 out of 5 stars review

Great stuff

[This review was collected as part of a promotion.] This stuff is pretty good. The flavor isn’t too bad (one of the better that I’ve tried) and it’s easy to mix up and drink in the morning or before the gym. It definitely gives me more energy and a nice ‘pick me up’

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183
Mar 19, 2023
Spot12479
3 out of 5 stars review

Ok watermelon

[This review was collected as part of a promotion.] I was able to mix it up easily and it didn't mix well so I had to keep stirring. It had a good watermelon taste in the mouth and did help with me during my sickness. It did leave a bad after taste but did go away.

Review from optimumnutrition.com
Helpful?1L1Q2VE97K5S16143914183