tag:blogger.com,1999:blog-699371146826913182.post6467654088422352781..comments2024-01-25T23:44:43.474-08:00Comments on Dave Mackey..the runner, not the ice hockey player: Help me solve my GI issues at WSDave Mackeyhttp://www.blogger.com/profile/13582815873942037665noreply@blogger.comBlogger24125tag:blogger.com,1999:blog-699371146826913182.post-46780210450269301492013-01-11T11:19:46.553-08:002013-01-11T11:19:46.553-08:00I think that it is great that you are looking for ...I think that it is great that you are looking for advise. Because most of your readers and supportive and quite knowable in those topics.per head servicehttp://www.hostpph.com/pay-per-head/index.aspxnoreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-26012231099775384872011-06-22T15:34:09.111-07:002011-06-22T15:34:09.111-07:00Gels are dehydrated energy drinks, so diluting gel...Gels are dehydrated energy drinks, so diluting gels is basically drinking an energy drink with the same sugar (good idea either way). The simple sugars in gels like maltodextrin is a starch and is ready to be used by the muscles, so if you can get in, you are there. I would limit fructose, like others have said. But I would try the dilution/energy drink thing. If it makes you hit the woods, take imodium. If it makes you puke, sorry I can't help.wiglebothttps://www.blogger.com/profile/06487718574577607175noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-72539609185315797612011-06-16T15:30:25.762-07:002011-06-16T15:30:25.762-07:00Dave, We will be rooting for you- hope something w...Dave, We will be rooting for you- hope something works out....<br />just keep those fluids going in....<br /><br />the mojo clankatehttps://www.blogger.com/profile/16683232026985213259noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-22887436903348650662011-06-15T13:48:16.118-07:002011-06-15T13:48:16.118-07:00This comment has been removed by the author.running maverickhttps://www.blogger.com/profile/13313818910842467919noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-30616645841883835652011-06-15T10:03:23.078-07:002011-06-15T10:03:23.078-07:00Most importantly, thanks for being a regular guy. ...Most importantly, thanks for being a regular guy. Next, I hope you'll post a follow-up on what you decide before, and then how it goes during WS. I haven't solved the fueling/hydration problem at that race either. My suspicion is that the combination of heat, aridity, and early elevation causes a special problem for those who are better adapted to low, humid, wooded environs. In particular, I don't think I correctly interpret the heat/thirst cues I get out there, because they are different from the ones I get over here on the right half of our continent. Based on the feedback you have gotten, I will likely try again to rely more on a maltodextrin solution for calories during hot 100s. I also like Scott's suggestion to pre-wet food. That will solve a perennial problem I have late in races of my mouth getting too dry to chew and swallow solids. One last note: you are a front runner. I recommend you run that way. Fueling be damned!Eric Grossmanhttps://www.blogger.com/profile/12815195014020975781noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-3385671012183140272011-06-13T14:30:09.677-07:002011-06-13T14:30:09.677-07:00Maybe I'm just a weirdo with a moustache that ...Maybe I'm just a weirdo with a moustache that runs well on cucumber, but I just noticed that my post dinner runs were a lot less difficult when I had some cucumber in my salad.. http://nutritiondata.self.com/facts/vegetables-and-vegetable-products/2439/2 <br /><br />Though they're mostly refreshing cucumber water, they also have a small amounts of other good stuff like vitamin K (protein digestion), omega 3 and 6 fatty acids, and folate that seem to all go together well for me.. I don't eat a ton, a couple bites at an aid station to settle things.. but definitely try it out on an upset stomach one day.Dominic Grossmanhttps://www.blogger.com/profile/10488705336241557651noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-29929838485548398902011-06-13T11:22:04.491-07:002011-06-13T11:22:04.491-07:00Overall I like the simplicity track that is being ...Overall I like the simplicity track that is being emphasized by these excellent suggestions. Thank you for the advice.<br />In retrospect, I was able to get away with mixing many different fueling sources and electrolytes at the shorter races, because the effort required to compete at these distances (<100K) is less. Simple has always been better in many parts of life, and hopefully including WS for me. See you guys in Auburn..Dave Mackeyhttps://www.blogger.com/profile/13582815873942037665noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-57318773189436099352011-06-12T19:43:23.749-07:002011-06-12T19:43:23.749-07:00Dave, I had constant GI issues and actually Karl M...Dave, I had constant GI issues and actually Karl M. helped me solve a lot of them. Usually start an ultra 50K-100m with one immodium. Later throughout the race after gels every 25 minutes and S-caps every hour I will "chase" any GI distress from gels or S-caps with chewable pepto tabs. What I notice about chewable pepto is that it has "ums" like magnesium and calcium which mitigate seizing in muscles...so they cut stomach issues and limit leg seizing. I know one immodium, chewable pepto, s-caps, and gels sounds like a lot to ingest but it is the magic cocktail. The heat at parts of WS will cause dehydration and endless cycles of GI distress unless you trap in electrolytes with s-caps and pepto. Hey,BTW, see you at UROC100k, JamesJames Brennanhttps://www.blogger.com/profile/05832322317888999210noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-86250050914129241782011-06-11T10:41:26.800-07:002011-06-11T10:41:26.800-07:00Choose one type of gel and just take that, not eve...Choose one type of gel and just take that, not even mixing brands. Yeah its boring, but it works, ask Roes...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-41779264438129751572011-06-10T16:33:04.741-07:002011-06-10T16:33:04.741-07:00I had a horrible year in 2010, due to injuries. T...I had a horrible year in 2010, due to injuries. The only thing that worked well was the gels in water. You get no highs or lows in food intake. Keep in mind, you must be drinking for this to work. A sip every 5 min out of a 20 oz bottle seems to be about right. GU roctain has the BCAA for the proper protein content. I take S-caps at one per hour, but have used other brands that don't have the 400 mg amount of sodium. In cooler weather you don't need as much, as it gets warmer take a couple extra caps. Everyone sweats differently. Its all finding your personal balance.ian mhttps://www.blogger.com/profile/08850324365423667567noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-87077737098926709222011-06-09T21:45:11.532-07:002011-06-09T21:45:11.532-07:00cutting back on food intake for a full day leading...cutting back on food intake for a full day leading up might be an idea. if i eat reasonably for a few days beforehand and maybe up my percentage of calories from carbs, a single day of restrained eating will not effect my stored energy at all. it does seem to keep my shit in check. <br /><br />i always wonder about sodium concentration. does too much or too little in the body lend itself to GI issues?Patrick Thurberhttps://www.blogger.com/profile/14936598386217706363noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-69018001022111049152011-06-09T19:43:32.887-07:002011-06-09T19:43:32.887-07:00Footfeathers, yeah I prob should not go with the s...Footfeathers, yeah I prob should not go with the simple sugars as much. It seems the concensus in the comments is such. Have a great race at SD this weekend. Chicken soup I may keep as a last resort. 15 oz per hour of water seems too little for me; I will have to drink twice that in that heat.<br />Bill, I've had great success with fruit, but not at WS, especially in 2009, where basically nothing worked. I may need to cut it down though for WS and go with the easiest calories to digest. Yeah the SE's of Reglan worry me a bit; Domperidone doesn't cross the blood brain barrier and is another option but is not available in the US.<br />BTW I used to be an anesthesia tech before PA school; loved the science side of it. I would have liked to go into anesthesia but didnt/couldn't deal with med school at my age.<br />Patrick, I will get in touch with Jaime. Cool as he is, he may not be wanting to help me though as he and I and Dan Olmstead are tied for the Cup. <br />Cucumber.. cool Dominic. I like the thought; do you know of other runners who use it? Don't shave your 'stache. <br />Wyatt, I am for sure going to go with all liquid, except for a few exceptions, like PBJ. Matt did have a tough crash at Pb before he ste the CR, but that may be due to other reasons. I saw on your blog that you eschew simple sugars in general; have you felt better overall d/t this?Dave Mackeyhttps://www.blogger.com/profile/13582815873942037665noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-17274028501517866532011-06-09T13:02:43.347-07:002011-06-09T13:02:43.347-07:00Cucumber. Makes me a little burpy at first, then e...Cucumber. Makes me a little burpy at first, then everything is smooth for hours and hours. Altitude, heat, you name it, cucumber settles my stomach better than ginger.Dominic Grossmanhttps://www.blogger.com/profile/10488705336241557651noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-68362109664195096272011-06-09T12:31:50.266-07:002011-06-09T12:31:50.266-07:00Dave, you could shoot Scott Jaime an email. He...Dave, you could shoot Scott Jaime an email. He's been working on this (dilution for gels) for a while and I think he likes it. So far it isn't for me, but I may need some practice getting it to dilute right. I seem to handle the gels just fine, but haven't raced in true heat yet (nor do I have much desire...).trudginalonghttps://www.blogger.com/profile/07960282857443641699noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-2728471579074884912011-06-09T09:10:29.032-07:002011-06-09T09:10:29.032-07:00Scott Jurek might also have some great suggestions...Scott Jurek might also have some great suggestions on WS nutrition.<br /><br />Regarding Matt Carpenter's brilliant nutrition tactics, as the saying goes, the solution to pollution is dilution. In this case, some foods can be a polluter in 100s. If these foods are dilluted in water, the pollution effect will be diminished or even eliminated altogether, while allowing you to benefit from hydration and calories. Almost anything Matt Carpenter does is in my book close to gospel. I'm going to try gels in water. I also heard Carpenter disolved PowerBars in water when he broke the Leadville record.Wyatt Hornsbyhttps://www.blogger.com/profile/14224514798393011001noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-74960511873836256682011-06-09T08:22:47.473-07:002011-06-09T08:22:47.473-07:00Hey Dave
The issue with the fruit is that our GI ...Hey Dave<br /><br />The issue with the fruit is that our GI tract can only handle a limited amount of fructose per hour and it is lower than we think. Like you, I have had crummy results with fruit. <br /><br />On the flip side, our GI tract can process 300 to 400 cals an hour of maltodextrin. I have gone as far as to make my own preparation consisting of malto and a little sugar free coolaid for flavor. That was a rock solid energy source with no GI issues. Just do the math so you are taking in around 300 cals an hour. Then I supplement my salt just as I would normally. This has worked well as far as 100s go. The other strategy I use well which I am sure you have tried/seen is just a gu every 20 min with water and salt as needed. <br /><br />I am an anesthesiologist and was thinking about your reglan idea. I dont think I would go there because though your stomach might empty faster, then movement through the rest of your gi tract might be too fast to adequately absorb the nutrients and fluids required. <br /><br />Bill WalzBill Walzhttps://www.blogger.com/profile/00062542571657925165noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-33752610453665474882011-06-08T20:22:47.524-07:002011-06-08T20:22:47.524-07:00This is great feedback. I am undecided about the r...This is great feedback. I am undecided about the role of simple sugars in ultras. In non-WS races simple sugars in my Clif Blks settle in quite nicely without any trouble at all; it is only the fats in other foods that I can't handle. However, at WS 2009, I ate alot of melon and fruit, which is basically simple sugar, and it didnt work.<br />I like the all fluid and dilution suggestions. It makes perfect sense that this would save the energy in stomach peristalsis in mixing solid food.<br />I will give ginger ale a try too. In 2004 pacer Roch Horton offered ginger candies, which seemed to help, or at least it coincided with the start of my recovery for the last 20 miles.<br />I want to retract my comment about Karl and 5ks; he eats 5k's for breakfast every day and eats them fast.Dave Mackeyhttps://www.blogger.com/profile/13582815873942037665noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-22415236269590581092011-06-08T20:21:56.865-07:002011-06-08T20:21:56.865-07:00This comment has been removed by the author.Dave Mackeyhttps://www.blogger.com/profile/13582815873942037665noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-56986110898782060332011-06-08T19:54:00.082-07:002011-06-08T19:54:00.082-07:00Of course, I have a speck of sand to your beach of...Of course, I have a speck of sand to your beach of experience but this works for me. Less is often better.Local Mind Mediahttps://www.blogger.com/profile/06676782580566794924noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-67603735883537560962011-06-08T18:55:16.484-07:002011-06-08T18:55:16.484-07:00Sugars (especially simple) are bad for me. Chicke...Sugars (especially simple) are bad for me. Chicken noodle soup, less water works. Per hour I think 200-250 cals with no more than one gel making up those cals is key later in the race. The sugar can make you nauseous and if you're slightly heavy on the water with sugar, then diarrhea is certain. If I were faced with that heat and the descending, I'd probably take in less of everything and even out at about 1 gel, 1 s-cap and 15oz water/hour at the effort you'll be putting out at mile 70-100 as a base. Then add chicken noodle soup to taste (tolerance) as you can.Local Mind Mediahttps://www.blogger.com/profile/06676782580566794924noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-42491472416922873882011-06-08T18:31:54.798-07:002011-06-08T18:31:54.798-07:00Matt Carpenter put his gels directly into his wate...Matt Carpenter put his gels directly into his water supply, either a water bottle or bladder. This gives your body a steady small supply of fuel with your fluid intake. It makes more sense then dumping a whole bunch of food into a stressed stomach. I know this method works, I use it myself. Since WS has a ton of aid stations, you should have no trouble having an ample supply of water. Three gels per 20 oz bottle over the course of 1 hour gives you all you need.ian mhttps://www.blogger.com/profile/08850324365423667567noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-57872799340782562922011-06-08T15:25:00.019-07:002011-06-08T15:25:00.019-07:00I don't have enough data points to suggest a s...I don't have enough data points to suggest a silver bullet, but will pass on my personal experience in case it's helpful. I too seem to battle unusual GI issues from Devil's Thumb on, and any other race where the temp got 90+ and I am 40-50 miles in. <br /><br />At the hot-and-steamy Burning River 100 last year, I diluted everything and had no GI issues. What I mean by this is that I never took in food/gel by itself, but always simultaneously with a ton of water (raccoon style). Not even "chasing with water", but soaking each bite with plenty of liquid before swallowing. Same with flat Coke, ginger ale, etc. - everything was at least 50% water. My GI tract seemed to flow much better and consistently as the heat and humidity picked up. <br /><br />Lots of theories on why this was the case, but the results were all I needed - my negative split was the first ever for a 100. <br /><br />Hope that helps!<br /><br />SDScott Dunlaphttps://www.blogger.com/profile/16096284778835123584noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-66436718461778029712011-06-08T15:02:40.286-07:002011-06-08T15:02:40.286-07:00Ginger Ale worked wonders for me the last 30 miles...Ginger Ale worked wonders for me the last 30 miles of Leadville. I lost my stomach at mile 55ish and about mile 70 after walking for hours I decided to try something different. I put Ginger Ale in one hand held and either water or Pedialyte in the other bottle. I ran the last 25 miles only 30mins slower than the 1st 25 miles, that was a good bounce back.Shad Mikahttps://www.blogger.com/profile/15849189624822351849noreply@blogger.comtag:blogger.com,1999:blog-699371146826913182.post-40393040382656056412011-06-08T13:09:19.227-07:002011-06-08T13:09:19.227-07:00Dave: I've never run Western States or even st...Dave: I've never run Western States or even stepped foot on the course (yet), so I may be talking out of my arse here. I wonder if the heat isn't at the root of the problem. In 100s I've found that ginger works well for me in terms of settling my stomach, but I still occasionally battle GI distress. I do think too much simple sugar can cause problems, too. Maybe contact a few hot weather specialists like those who do Badwwater and see what they say since the canyons at WS are so punishing. Your problem surely couldn't be elevation-related since you're from Colorado. I also think Karl M. might have some good advice.<br /><br />WyattWyatt Hornsbyhttps://www.blogger.com/profile/14224514798393011001noreply@blogger.com