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Desk job weight loss: a plan for men who sit all day

Published 8 November 2026 · Matt O'Brien

Three ordinary fictional men in a plain UK open-plan office: a young East Asian man in a light blue shirt stretching beside his desk, a middle aged Black man in a navy jumper walking past with a mug, and an older white man with ginger-grey hair in a brown checked shirt working at his desk

Short answer: with a desk job, the plan is less about one big workout and more about the shape of your working day. The NHS says many adults spend more than 7 hours a day sitting, and that you can hit your weekly activity target and still be at risk if you spend the rest of the time sitting or lying down. So you need three things: break up the sitting, fit in some proper activity, and stop work deciding when and what you eat.

Why sitting all day matters

The NHS page on the benefits of exercise says most of us now have jobs that involve little physical effort. It describes sitting for long periods as sedentary behaviour and says it is thought to raise the risk of long-term conditions such as heart disease, stroke and type 2 diabetes. That is why a desk job needs its own plan rather than a generic one.

Step 1: break up the sitting

The NHS physical activity guidelines for adults aged 19 to 64 say to reduce time spent sitting or lying down and break up long periods of not moving with some activity. At a desk, that can be as simple as:

Step 2: get some real activity into the week

The same NHS guidelines say adults should aim for at least 150 minutes of moderate intensity activity a week, or 75 minutes of vigorous activity, plus strengthening activities that work all the major muscle groups on at least 2 days a week. Moderate means you can still talk but not sing.

For desk workers, walking is often the easiest way in. The NHS walking for health page says a brisk 10-minute daily walk counts towards your 150 minutes, and suggests walking part of your journey to work. Our walking for weight management guide goes further, and the steps tool helps you see where you are starting from.

If you are 65 or over, the NHS guidelines for older adults say to be active every day, even if it is just light activity, and to include strength, balance and flexibility work on at least 2 days a week. Whatever your age, the NHS says to speak to your GP first if you have not exercised for some time or have medical conditions or concerns.

Step 3: stop work deciding your food

Desk jobs often go wrong around food rather than movement: skipped lunches, meeting biscuits and a big raid on the cupboard when you get home. The NHS tips to help you lose weight include not skipping meals, because you might end up snacking more, swapping sugary drinks for water and aiming to lose 0.5 to 1kg a week. They also say you do not have to do everything at once.

A lunch you can actually eat at your desk on a busy day is worth more than a perfect one you never make. Our meal prep guide for busy men has ideas.

From Matt

In Get Your Life Back I describe a man who "works at a desk, has a fridge nearby and still misses lunch because meetings fill the gap. He needs a realistic break and something he can eat when the gap finally appears." I also write: "Give the action an address in your week. 'Walk more' is a wish. 'Walk around the block after I finish work on Tuesday and Thursday' is a plan." Pick one change for your working week, give it a time, and give it an easier version for the days that run late.

If your workplace wants to help

Plenty of men find it easier when the whole team is moving more. If you are in a position to raise it, see our workplace wellbeing page.

When to get help

The NHS chest pain page says to call 999 straight away if you get sudden chest pain or pressure that does not go away, pain that spreads to your arm, neck, jaw, stomach or back, or chest pain with sweating, sickness, light-headedness or breathlessness. If chest pain comes and goes, get medical advice from your GP or NHS 111. If you want to check where your weight sits, try our healthy weight tool, and see our men's weight management hub. I'm not a clinician, so talk to your GP about anything specific to you.

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