Keep gaining weight but doing everything right

If you're gaining weight over time, you're eating over maintenance level.

The numbers you've given us (33 lbs in 12 months gain) indicate you are overeating by an average of 315 or so calories per day.

How's your food logging? Do you weigh everything before you eat it?

This isn't knocking the weight gain, since a lot of it might have been muscle. Do you measure yourself to see how many inches you've gained and where?

If your not eating at a deficit , then you won't lose weight

It doesn't matter that you've cut out sugar or try to eat healthy.

For weight loss, it comes down to calories

You are missing one key answer....how much have you been eating?

BoricuaUK wrote: »

I haven't been overeating, in fact I am constantly under my calorie goal. I eat a special diet too, FODMAP, which are just easier digestible foods, so no lactose and low gluten etc.
Sure I've noticed I am getting muscle both around my legs and arms, noticeable biceps and forearms, but that isn't 15kgs.
Just very frustrating, hoping to find out what it is at some point.

If you're gaining weight, you're overeating.

If you're constantly under your calorie goal, your goal is too high or you're not logging correctly.

BoricuaUK wrote: »

I don't and it would 't make sense anyway......I ate the same when I was off training because of my injury and I didn't gain any weight during that time. I only gained through the time I was training. Training actually makes me less hungry and I can end up eating very little, which of course isn't idea, either.
I've been down because of this so I've been a bit lazy for two weeks now.....and nop, have not gained anything.

Are you weighing your food on a digital scale? If you're not, unfortunately there is very little chance you know your intake is accurate. A 'cup' of your breakfast cereal could be 150 calories or 350, you wouldn't know if you don't weight it. Open your diary and people can give you more targeted advice.

BoricuaUK wrote: »

I don't and it would 't make sense anyway......I ate the same when I was off training because of my injury and I didn't gain any weight during that time. I only gained through the time I was training. Training actually makes me less hungry and I can end up eating very little, which of course isn't idea, either.
I've been down because of this so I've been a bit lazy for two weeks now.....and nop, have not gained anything.

You do. You can accept it or you can argue.

If you're gaining weight, you're eating more than maintenance. It really is as simply as that. Unless you think your body is magic.

BoricuaUK wrote: »

I haven't logged properly on here, I've used the fitbit app. But I'm gonna start logging here again.
I know pretty well what I am eating and not as I'm a medical researcher. I've had everything from food and nutrition to physiology and so on. My food plan is also done by professionals and checked every now and then.
Thanks for the suggestions though, I'm gonna have to just keep trying.

If you're a medical researcher, what would you list as possible causes of weight gain without a caloric surplus? Other than, perhaps, an aggressive tumor or tapeworm, what else is there over this timeframe?

I think that the logical first step, before getting more blood drawn or paying for more doctor's appointments, is to carefully log your food intake using a digital scale for two weeks and seeing if that helps. Without consistently logging with a food scale, you just can't rule out overeating. As a medical researcher, surely you know about Occam's Razor. I would start with the simplest solution and work my way up instead of searching for medical reasons when you aren't logging food intake. And having a pretty good idea of what goes in your body is very different from actually logging. Having courses in food, nutrition, and physiology don't negate the need for a food scale.

BoricuaUK wrote: »

Once again, in an intensive training program as I play pro badminton. I have badminton training ~10 hours a week, tennis ~7 hours a week. Do my fitbit 10k steps and some swimming and jogging when I can together with weight training.
I eat a plan of Protein>Carb>Fat and cut sugar by 80%.
I keep gaining weight, have gained 15kg since last year (7 month break due to injury but didn't gain anything then). I am obviously getting muscle mass, however, my body fat % is hardly moving more than 0.X.
I had my thryoid checked and it is working hard but still normal. No diabetes either.
I realise I do more anaerobic training but it should still show something......
Has anyone had similar problems? I keep getting bloodwork done but they can't find anything.

You are eating too much food, that's why you're gaining.

Shoot, it sounds like you are doing everything right when it comes to fitness, but that will not matter as to weight loss if you eat too much food.

You are not gaining muscle, you are gaining fat. Muscle gains are intentional and require some heavy weight lifting.

Here's what I would do if I were in your shoes: weigh all food, log all food and ensure you are using accurate calorie entries, and set your activity level to active. As for exercise calories, log only your intentional cardio exercise (running) but nothing else, as it would be included in your daily activity because you do it every day.

If you want more concrete advice, open your diary too (assuming you log all food). If you don't log your food, I would suggest you do so because it will provide a more accurate picture of how much your intake is.

BoricuaUK wrote: »

I haven't been overeating, in fact I am constantly under my calorie goal. I eat a special diet too, FODMAP, which are just easier digestible foods, so no lactose and low gluten etc.
Sure I've noticed I am getting muscle both around my legs and arms, noticeable biceps and forearms, but that isn't 15kgs.
Just very frustrating, hoping to find out what it is at some point.

Science is based on evidence where nobody gets to be a special snowflake.

The evidence (of weight gain) shows you have been eating too much.

You may be more toned from all your fitness work, but that does not mean it's muscle. Women have a harder time of building muscle than men, and it's not even that easy for men to build muscle.

Please take a step back and listen to the good advice here.

BoricuaUK wrote: »

I haven't logged properly on here, I've used the fitbit app. But I'm gonna start logging here again.
I know pretty well what I am eating and not as I'm a medical researcher. I've had everything from food and nutrition to physiology and so on. My food plan is also done by professionals and checked every now and then.
Thanks for the suggestions though, I'm gonna have to just keep trying.

Just because you are a medical researcher and have taken those classes does not mean you are immune to fat gain.