Hello  I am about 9-10 months RNY Post op-   In the first 7 months I lost 155lbs, from 337 down to 172. I have started training for a half marathon in mid October and a possible Marathon the first week of November.  (I am 50 years old) Since I have started running and especially running long distances I am hungry all of the time. I have worked up from walking 12 miles to jogging 17.25 this past weekend. I am really not a runner, I can only jog. I cannot do an 8 or 10 minute mile, I am very slow at 13-14 minute miles. Most of you guys probably walk faster then I jog :) . I am trying to build up endurance for 26 miles and it will take me about 6 1/2 hours to complete the marathon about 3.5 hours to complete the half marathon. When I jog the long distances once a week on Saturday I take the energy gels one per hour and it is 100 calories and 22 carbs. This past Saturday I took 4 gels and it took about 4 hours to jog 17 miles. When I jog like this I am hungry all of the time. I am very worried about stretching my patch out. I continue to eat protein supplements, Isopure, Pure Protein Bars, and Quest bars.  I have added a lot fruit grapes, bananas, and strawberries. Unfortunately I eat a lot of food at night. I am jogging 40-45 miles per week.  In the past month I have gone from 172 up to 180. I have a lot of feelings about the weight gain, frustration with myself, panic, guilt, and saddened thinking I am going to gain so much weight back. In other forums and my close family have told me maybe I should just quit jogging and not train for a marathon so that I do not gain weight. I guess I have made a commitment to myself and want to continue on. When I was 30 I ran the half marathon twice, but have never made it for 26 miles. I would like to go to a support group at my program, but they are only on Monday nights at 5:30 and it is a 3 hour round trip and I work full time. There is another program close to me but they only meet twice per month and I am having trouble getting to the meetings because they are during the day and I am at work.  When I started jogging longer distances and just had probably less then 100 carbs per day with no fruit I actually felt week and had to sit down many times. I feel like I need the carbs to keep up my energy.  This morning I jogged 7.5 miles, I have had 1800 calories, 130 grams of protein and 118 grams of carbs , 32 grams of fiber, and 38 grams of Fat, I have not had any regular food, just protein bars and isopure.  Anyway I have gained 2lbs a week for the past month and I am up to 180.  When I had my last office visit about a month ago they told me I should keep my weight range between 172 and 178 and not go above and here I am at 180.00 . I struggle with hunger and craving food all of the time. I am looking for suggestions? constructive criticism and good advice about what to do.  I hope it is okay if I cross post this in the RNY forum. I am really worried about regaining all of my weight. I do not understand how I can gain 8lbs while jogging 40-45 miles per week. Any advice or words of wisdom would be greatly appreciated. So thankful for everyone here .- thank you! 

http://www.vox.com/2016/4/28/11518804/weight-loss-exercise-m yth-burn-calories

Check out the above article.  I found it helpful in putting exercise in it's proper for me place.  For me it's important that I move and keep myself able to do the things I want to in life.  I want to be able to walk quickly a 5k anytime I please.  I want to be able to walk quickly a 10k with a couple weeks planning.  I want to walk quickly a 1/2 marathon in December this year.  I do not want to job a 5,10, or 1/2 this year due to my feelings that it's not necessary but also that I've put enough strain on my joints for awhile being obese.  

When I got done with my 6 weeks post op I joined a fitness group.  The first thing the instructor said... I do not believe in exercise to loose weight.  We will work out, we will sweat, and we will get more fit.  I took that home and digested it, and remembered that your right a lot of people on here seem against exercise.  However once reading the info above and looking at what those against exercise was really saying, I came to a few conclusions.

Not exercising is not the primary reason I got fat.  I was eating 1/2 a pizza while watching tv, I drank sodas all day, I visited Starbucks and McDonalds the same day, I ate a lot of processed high sugar and high fat foods.  I did this for years and years until I called a halt to it.  No amount of exercise was going to cover up those horrible habits.  I can drink a large frappe in 15mins but there is not one exercise on earth that I can think of that will burn off that many calories in the same time.  So to me food is my first concern, exercise is there to help me feel better, tone muscles, and help me do my daily grind. However I'm not going to count on it to loose weight.  

I was cut up just before you were.  I always priding myself on being able to get in there and do work be that at the gym or just doing things around the house.  If it needed lifting, shoveling, paining, or so on I could do it.  I've lost enough weight that some of that is fat and some is muscle.  I'm a lot weaker that I was and that sucks.  My general plan which has been voiced on here over and over is work on eating per your personal plan, do enough exercise to feel good, and wait until closer to maintenance before worrying too my about strength exercise.  It's kinda disheartening in a way but I just don't have it in me to go full on right now.  Could be muscle loss, carbs, less calories, or vitamin adjustments, but right now I'm concentrating on a lot of walking, and minor upper body stretching and low end weights. 

You want to lose weight?  Eat better.  You want to feel better?  Do whatever exercise you find enjoyable.

I am doing walks, but seriously thinking about biking. I see overweight people trying to lose weight by walking, but have never seen a biker that is overweight.