The person who posted is not exercising. He's in a job where one day he has strong physical demands and the next less so. If you have a problem in the workplace that's much more dangerous than when you have a problem in the controlled environment of a gym,
It's your choice but advice from a relevant qualified professional should always be taken seriously. My use of a dietician was very good. She looked at my food from all perspectives. Her advice to me was to eat less. She said move more was not relevant to me. She gave me advice that works. She was aware the official guidance was wrong, her issue was that there was no categorical proven plan but her insights and follow up reviews made a big difference for me.
So We'll have to agree to disagree - the original poster was saying that he has a very active job. We don't know his BMI and %fat. and we don't know his goals. So we should be careful about what we are assuming. A qualified dietician asks all the relevant questions and can explain the reasoning behind their advice. You also have the ability to hold them to account if their advice is wrong.
I have dealt with dieticians, doctors, dsns and specialist endocrinologist who have always been reluctant for me to be in ketosis, only one specialist and one dietician who advised me about this site.
Every other medical professionals have advised me I need to eat complex carbs or the equivalent because we need a certain amount of carbs derived glucose to keep clear brain function. We need the fibre from grains and other starchy vegetables.
We are told to eat low fat, do not eat saturated fats. Count your calories and eat three square meals a day and have good healthy cereal for breakfast or porridge because it is a super f food. And so on!
I followed this dietary advice for over a decade and it was killing me.
I am carb intolerant, so are many T2s. It is very difficult to lose good weight if you are eating too many carbs. Portion size and how much food you actually need.
For every carb there is an alternative.
The best thing I ever did was go into ketosis. It has been a revelation, my health until recently has been very good for a man of my age and condition.
The last thing I will advise is a professional in medicine has been taught by those who follow the dictates of the policy of advice which the NHS is based. The general practitioners are few and far between that understand diabetes, metabolism issues and rare cases of hypoglycaemia. Few understand that the endocrine system is so individual that the treatment should be tailored to you. How meds are used and the pitfalls of bad dietary advice, how T2 diabetes can be controlled with and by diabetics who have reversed their health.
Exercise is important but not as much as food.
There is a lot of long distance athletes in many sports that are Keto adapted.
There are many in sports that use ketosis in the off season to lose weight and keep in shape.
Keep safe