(FEED THE FLAME) I'm here in the small 
 village of Iten, Kenya, home to the Kalenjin tribe 
 and some of the world's most dominant 
 long-distance runners. The Kalenjin tribe makes up 0.6% of the world's population. They are always in the top 
 80-90% of long-distance runners in 
 the world at any given time. I've been told their diet is 
 the driving force to their success. Over the next week, 
 I'll train, diet, and fully immerse myself into 
 the Kalenjin lifestyle. I want to find out about 
 their training regimen, motivation to compete, and what 
 exactly it is about their diet that fuels their bodies 
 for long distance running. (SUNRISE - ITEN, KENYA) Gladys Chesir is one of the 
 women to watch this year. She has been running 
 for almost a decade and is a highly 
 decorated runner. She has almost won every race 
 that she has ever competed in and has even recently 
 claimed the title Fastest 10,000m In The World at last year's Diamond League. She is training for her first 
 Olympic trials this year and is expected to make 
 the Kenyan team and place. Maybe with one-minute recovery, 
 we do only once in a few weeks, depending on the season. Hugo Van Den Broek is 
 coach to Gladys Chesir and a famed and well-respected 
 member of the Iten community. I met Gladys in 2014. From the first time 
 I saw her run, I realised that she's 
 a very big talent. She has such a big foundation. She's really focused 
 and very professional. I think she has everything 
 it takes to become one of the best 
 athletes in the world. I know Gladys always use a 
 little bit faster than I ask and I shouldn't 
 ask for too fast. Most of the time most Kalinjens have run. They have retired 
 like Lornah Kiplagat. I want to be like Lornah. Now if you meet a kid, 
 they say, "I want to run 
 faster than Gladys!" So that motivation comes 
 when you're young. The circumstances here 
 definitely contribute. Training here at high altitude, it looks like training 
 has more impact. Plus the fact that we're in 
 the tropics, it's hot. The roads are really a good 
 training for your lower legs. What at least you're doing 
 90% of the time is just running in nature. Maybe also the diet helps. The food is always healthy, 
 it's always natural. It has impact on the recovery. They eat lots of vegetables. 
 Once in a while, they eat meat but meat is a kind of a luxury. They eat beans, rice, ugali, 
 which is just boiled corn meal, you would say. Most of the big marathons 
 now prepare ugali, because the Kenyans like that. In the first place 
 they have this diet because they have 
 no other option, because they have 
 not enough money. Ugali is like... You need only a small portion 
 of it to get enough calories. Hello! I'm Rosie. Thanks for meeting me. Are you Kalenjin? Yes, I'm Kalenjin. - Specifically Keiyo. 
 - OK. This is my home district, 
 my home country. So what's the ideal breakfast, 
 lunch and dinner for a long-distance 
 athlete here? You know there are no 
 specifics. You can't say, "Take this, 
 take this, take this." It is what is available on 
 the table for them. So long as it has the main - 
 the carbohydrates, the protein, the vitamins, to meet their requirements. I've been learning a 
 lot about ugali and a lot of people have 
 been telling me that it's a much healthier 
 carb than other carbs. Ugali is a very simple meal. It's a source of carbohydrates. It's complex. It is milled with the outer 
 husk so it has roughage 
 and it has fibre. It is locally made here. So no additives, 
 no preservatives added. So simple. And then the maize germ 
 in it provides iron. And then it is also cheaper compared to other 
 carbohydrates. So there's not even a training 
 diet specific for the athletes? The food that 
 they eat is actually the food that 
 their families eat. - Hello! 
 - Hello! Yes, you are welcome. We plant the maize in April. By September or October, it will be ready. So that is the time 
 when we can harvest the maize, so that we can make ugali. You only need the seeds, don't need fertiliser. Yeah, it's not expensive. Most of the people 
 here, they grow maize. So most families grow their 
 own? Yeah. We like ugali because it 
 makes your body very strong. So now you're going to show 
 me how to make ugali? Yeah, I'm going to show you. Step one - find the perfect 
 maize and collect. Step two - remove kernels. Step three - collect the 
 perfect kernels and keep only the good ones. Step four - finely 
 grind the maize. Step five - boil water. Step six - add little by little 
 the finely ground maize and stir with a wooden spoon. It's good! You can 
 soak up a lot of flavour. You could eat it 
 with a lot of things. - Huh? 
 - Yeah. The idea is to add something. Like stew. Maybe a soup. It soaks it, no? Yeah, but eating it bare, it's very difficult. 
 It's very hard. Viola Lagat comes from a 
 decorated family of runners, one being her legendary 
 brother, Bernard Lagat, a two-time world champion 
 and Olympic silver medallist. Viola has yet to compete in the 
 Olympics and she faces a lot of pressure to make 
 the team this year. Viola went to college and 
 trained in the US for the past few years. And despite being 
 considered a clear underdog, she is determined to make the 
 team and make both her family and country proud. So huge difference 
 from the US, right? - Huge! 
 - Yeah. You might feel sore after 
 because of the altitude. I feel that every time 
 I come back here. - Oh, really? 
 - Yeah. Hi! Iten is almost like 
 a running community. So if I go on a run 
 and I feel like someone could help me, I could 
 just jump in their group and just run with them. - OK 
 - Whoo! - You're sweating already. 
 - Yeah! You're not?! Shit! That was fun. Viola Kibiwot 
 is a two-time 1,500m Olympic runner and has been 
 running for most of her life here in Kenya. As a highly accomplished 
 veteran runner, Kibiwot has taken Viola Lagat 
 under her wings, and has been mentoring the 
 young hopeful to help her make the team. They train together, eat 
 together and even live together. How about we make 
 a deal for 2017? You're welcome to 5k. Well, after... No, I'll come to 
 five when you retire from five because you're going 
 to kick my butt. But you 
 still have a long way to go. I know. Supper now. Today's good. It doesn't 
 have a lot of fat. You know what, I actually don't 
 enjoy eating meat in the US. I like it in Kenya. I think it's because I know 
 that it's organic here. How long have you been running? More than 15 years. Wow! So she can definitely 
 give you a lot of tips. It started when I 
 was in primary school. Every time you are late, you have to 
 run from home to school and then from home, 
 you go for lunch time. The bell goes, 
 and you have to run. I am from a family of ten 
 and I'm the youngest. So all my older 
 siblings used to run. I've never been to the 
 Olympics. For me, it would be 
 a dream come true. It would mean so 
 much to run, especially in front of my family because they'll be coming over to 
 watch. And it would also change my 
 career. Being an Olympian would open doors for me and... I have a lot of kids looking up 
 to me in my village, and when I was growing up 
 I have a brother-in-law who passed away when 
 I was in high school and he always encouraged me to do 
 the best in everything that I do, so... running reminds me of what he 
 wanted me to achieve. And also the kids in my 
 village, whenever I'm running out there, they just cheer for me and they 
 tell me that they're following on my footsteps. I told her 
 she has to run very fast. Not 4.05 because I ran 3.59 
 when I was running 5,000 so I want her to 
 run maybe 4.01, 4.02. OK, can you guys tell me 
 what we're going to have? This is managu. That's beef stew, with ugali. So in Kenya we have 42 tribes and every tribe has 
 their own food. Kalenjin's main is ugali. Without ugali, it's 
 like you haven't taken a meal. Do you ever miss being in Kenya 
 and eating...? Yeah, I miss having 
 that family time. In the US, mostly people 
 just live on their own and you have to eat by 
 yourself. So when I'm home, 
 our neighbours come over and you'll eat 
 together sometimes. And like Viola today, she didn't even eat lunch until 
 I got back from my training. She cooked 
 and waited for me to get home. - Do you also drink mursik? 
 - Yes. Do you drink that regularly? 
 Mursik? Mm, we drink fresh more. Mostly fresh. But if you go to the village, 
 most of the people like mursik. Viola and Viola told me I had 
 to try this drink called mursik. I'm going to meet a couple that 
 provides the town with locally made mursik 
 and see what it's all about. Mursik is a fermented milk. This is the calabash. This is now the 
 first process of preparing the calabash before 
 they put the milk inside. The inside of the calabash is 
 all smeared with the ashes from that tree. The special 
 type of tree they're using will bring a 
 good flavour to the milk. And put milk into the calabash and leave it for like 
 two to three days. It is already fermented. So if I drink this I should be 
 able to do a marathon? Yeah, you can just do 
 something good but not once, you have to 
 drink it several times. Smells like a 
 really strong cheese. Ah, more or less. 
 It's more of less like cheese. The fermentation process 
 breaks the proteins in the milk down to simple proteins 
 to be easily absorbed into the blood stream, providing energy and 
 the proteins that we need. Mursik also has live culture, so it maintains the good 
 bacteria in the stomach. Cheers! OK, it's not bad. I just feel off. I think it's one of those 
 things that, unless you're Kenyan, 
 maybe it's not your thing. We're almost a litre down... I'm feeling like 
 it's time to go to sleep. She looks good today. 
 The way she's running... I can see already. You make sure, at the first 
 line you are at maximum speed. I'm going to cook with Albert 
 and you're going to relax. This is your day off. OK! I'm at the market right now 
 with Gladys's husband, Albert, and we're going to look for the 
 perfect chicken for dinner tonight. Oh, my goodness! This is the cock. Really? We're going to eat 
 a cock? Yeah. He's a nice cock? Oh, my God. - Do I need gloves? 
 - No gloves. - Don't say mercy. No mercy. 
 - OK, no mercy. The whole neighbourhood 
 is eating this chicken. - Yeah, no mercy. 
 - OK, let's do it. Look at that neck. 
 This is guillotine style, OK. Faster, Rosie... 
 Faster! Faster! So, I saw you today on the 
 track and you were outrunning even the men. How did you feel about 
 your training today? I'm happy because I've 
 improved. I was sick one month ago. Now I can 
 continue with my training. I have to believe in myself. You know, if you are no stress, nobody disturbing you... you can run good. Do you think that after you win 
 the Olympics and other marathons, 
 and set more records... you'll still stay here? Yeah. Because here I started 
 my training, so everything is here. Life in Kenya is easy. Not like in some 
 other countries. Like, for us, we can 
 have food from our farm. Everything is 
 grown from a farm. If you don't have, 
 your neighbour asks. Like me, I can assist my 
 neighbour if he doesn't have. Do good and do your own way. It's clear that there are 
 many theories and reasons as to why the Kalenjin produce the most amazing distance 
 runners. It's a perfect combination 
 of elevation, climate, diet, lifestyle and genes. Everyone here in Iten 
 seems to be so connected. To their food, their environment, their land and their families. When I was starting running, no shoes, 
 no training shoes. But my parents 
 were assisting me a lot. I said, "Ah! Let me 
 try my best." (GLADYS CHESIR DID NOT QUALIFY 
 FOR THE OLYMPICS IN 2016) (SHE PLANS TO MAKE THE TEAM IN 
 2020) I would like to 
 have a small farm because when I get home 
 I enjoy working on the farm with my mom, growing vegetables. I feel like life goes by 
 so fast in America. Here in Kenya, it's just about 
 running and relaxing, and waiting to run 
 the next day. (VIOLA PLACED IN THE 1,500M 
 TRIALS AND WAS AMONG (THE RUNNERS TO REPRESENT KENYA 
 IN THE 2016 OLYMPICS) I've witnessed athletes 
 of all levels. From beginning runners to 
 world-class Olympians, training on the same dirt roads 
 at 6am sharp every day of the week. Food is absolutely the common 
 thread here in Iten. But also the Kalenjin's 
 undisputed discipline, combined with their ability 
 to maintain a balanced lifestyle, leads to their 
 constant accolades. It works for them and they will 
 continue to do so for generations to come.