
The maintenance phase can last weeks, months, and even years without long term harm to the kidneys since doses from 2 g to 20 g of creatine can easily be passed through the kidneys and liver during the filtration process, and no study has demonstrated kidney failure during their research 2, 8. It is, however, recommended that doses larger than 5 g/d only last for a brief period of 5 days 2. Most common theory on creatine maintenance is that supplementation between 2 - 5 g/d are best to maintain increased creatine levels with the muscle tissue 4. However, doses as low as 2 - 3 g/d have also shown to improve athletic performance in athletes 3. For those that want to load based off of weight then it is recommended to use 0.03 - 0.075 g/kg: use the same formula above to determine your dose. It must also be noted that the loading phase can be omitted by athletes that do not need to rapidly increase their creatine concentration within their muscles by just starting out with the maintenance phase. Athletes that do skip the loading phase will see similar results within 30 days or more when compared to what athletes see from pushing larger doses in the loading phase within a 5 day period 4. So in essence the loading phase will not be necessary for most athletes that are not in competition mode.
Whatever your decision on creatine is, one thing that is necessary to know is that there are several types of creatine out there. It appears that the easiest form for the body to absorb is creatine monohydrate and this form has been shown to have a 100% absorption rate 4,6. Also, don’t just fall for those ads that state that you will see fast results. There are a lot of misleading ads out there, and even more horrible products. Do your research on each product and read the reviews. Also, ask your friends about the products that they have used, and find out if they liked the results that they got. Rule number one is always to know your product before starting a supplementation protocol. Rule number two: there is really no need outside of the loading phase to supplement with more than 5 g/d, so don’t waste your product just because you are following the label. Knowledge is power, and ignorance can be dangerous when it comes to supplements. What you don’t know can hurt you, so make sure that you know and understand the facts. Until next time, happy lifting and may good health follow you always.
References
1. Faraji, H., Arazi, H., Vatani, D. S., & Hakimi, M. (2010). The effects of creatine supplementation on sprint running performance and selected hormonal responses. South African Journal for Research in Sport, Physical Education and Recreation, 32(2), 31- 39.
2. Francaux, M., & Poortmans, J. R. (2006). Side effects of creatine supplementation in athletes. International Journal of Sports Physiology & Performance, 1(4), 311 - 324
3. Gutierrez-Sancho, O., Moncada-Jimenez, J., Salazar-Rojas, W., & Robinson, E. (2006). The effect of creatine supplementation on biochemical, body composition, and performance outcomes in humans: A meta-analysis. International Journal of Applied Sports Sciences, 18(2), 12 - 38
4. Hoffman, J. R. (2010). Creatine and ß-alanine supplementation in strength/power athletes. Current Topics in Nutraceutical Research, 8(1), 19 - 31.
5. Hosseini, S. S., Rostamkhany, H., & Panahi, M. (2011). Effect of plyometric training and creatine supplementation on some fitness factors in athletes. Annals of Biological Research, 2(6), 19 - 31.
6. Lamontagne-Lacasse, M., Nadon, Raymond, & Goulet, E. (2011). Effect of creatine supplementation on jumping performance in elite volleyball players. International Journal of Sports Physiology & Performance, 6(4), 525 - 434.
7. Lopez, R. M., Casa, D. J., McDermott, B. P., Ganio, M. S., Armstrong, L. E., & Maresh, C. M. (2009). Does creatine supplementation hinder exercise heat tolerance or hydration status? A systematic review with meta-analysis. Journal of Athletic Training, 44(2), 215 - 223.
8. Ostojic, S. M., & Ahmetovic, Z. (2008). Gastrointestinal distress after creatine
supplementation in athletes: Are side effects dose dependent? Research in Sports Medicine,
16(1),15 - 23.