Rumble pre-workout from Crow Nutrition is a powerful and technically dosed pre-workout to help you crush all of your workout goals! Not only does Crow Nutrition Rumble promote a powerful energy boost without that "stimmed-out" feeling, but Rumble also contains blood flow and pump ingredients such as Betaine and arginine for maximum pumps! Crow Rumble pre-workout even boosts nootropic benefits from patented Nitrosigine and caffeine anhydrous! This multi-level pre-workout can tick all of the boxes for your favorite pre-workout benefits!
To assess tolerance, start by taking a 1/2 scoop at first. Mix 1/2 to 1 scoop in 12-16 oz. of water. Take 5-10 minutes prior to working out. Drink plenty of water during your workout to maximize absorption and hydration.
Serving Size: 1/2 Scoop (8.18g)
Servings per Container: 40
Creatine Monohydrate (micronized) 2.5gm **
Betaine Anhydrous 1.25gm **
Glycer-Size (std. min 65% glycerol) 1gm **
Nitrosigine (Bonded Arginine Silicate) .75gm **
Caffeine Anhydrous 100mg **
DiCaffeine Malate (Infinergy) 100mg **
L-Theanine 50mg **
ElevATP (Ancient peat and apple extract) .75mg **
AstraGin 30mg **
Sodium (as pink Himalayan Sea Salt) 62.5mg 5.43%
Huperzine A 1%
Other Ingredients: Natural & Artificial flavoring, Citric acid, Malic Acid, Silicon dioxide, sucralose, calcium silicate.
Read the entire label before use. Not for use by anyone under the age of 18. Do not use if you are pregnant or nursing. Consult your physician prior to use if you are using any medications and/or have any medical conditions. Discontinue use and contact a physician or licensed, qualified healthcare professional immediately if adverse reaction occurs. Do not exceed recommended serving. Keep out of reach of children.
Mora-Rodríguez R, García Pallarés J, López-Samanes Á, Ortega JF, Fernández-Elías VE. Caffeine ingestion reverses the circadian rhythm effects on neuromuscular performance in highly resistance-trained men. PLoS One. 2012;7(4):e33807. doi: 10.1371/journal.pone.0033807. Epub 2012 Apr 4. PMID: 22496767; PMCID: PMC3319538.
Mazzini L, Balzarini C, Colombo R, Mora G, Pastore I, De Ambrogio R, Caligari M. Effects of creatine supplementation on exercise performance and muscular strength in amyotrophic lateral sclerosis: preliminary results. J Neurol Sci. 2001 Oct 15;191(1-2):139-44. doi: 10.1016/s0022-510x(01)00611-6. PMID: 11677005.
Trepanowski JF, Farney TM, McCarthy CG, Schilling BK, Craig SA, Bloomer RJ. The effects of chronic betaine supplementation on exercise performance, skeletal muscle oxygen saturation and associated biochemical parameters in resistance trained men. J Strength Cond Res. 2011 Dec;25(12):3461-71. doi: 10.1519/JSC.0b013e318217d48d. PMID: 22080324.