How to Lose the Dad Bod: Fitting Training Around Kids

Check your waist, not just the scale

If you are losing fat and building muscle at the same time, the scale can move slowly even when things are going well. Your waist is a better guide, and it matters for health.

NICE, which sets health guidance in England, recommends that adults with a BMI under 35 use their waist-to-height ratio alongside their BMI:

Waist-to-height ratio	What NICE says
0.4 to 0.49	No increased health risks
0.5 to 0.59	Increased health risks
0.6 or more	Further increased health risks

For a man 180 cm (5 ft 11 in) tall, a ratio under 0.5 means a waist under 90 cm (35.4 in).

How to measure: find the bottom of your ribs and the top of your hips, wrap a tape measure around your waist midway between them, and measure after breathing out naturally.

If your waist is in the higher ranges, you have a health condition or take regular medicines, or you get chest pain, dizziness or unusual breathlessness when you are active, speak to your doctor or GP before you start a new exercise plan.

Training: short sessions that still build muscle

You do not need an hour in the gym every day. In a 2021 review in Sports Medicine titled "No time to lift?", Iversen and colleagues recommend a minimum of 4 sets per muscle group a week, using weights heavy enough that you could only manage about 6 to 15 reps, including at least one leg-pressing exercise such as squats. They found that supersets, drop sets and rest-pause sets roughly halve training time for the same amount of work.

The UK Chief Medical Officers recommend strength activity on at least 2 days a week, plus at least 150 minutes a week of moderate activity such as brisk walking.

A full-body session for busy dads:

Pair	Exercise A	Exercise B	Sets and reps
1	Squat or leg press	Seated cable row or one-arm dumbbell row	3 sets of 6 to 10
2	Romanian deadlift	Dumbbell bench press or press-ups	3 sets of 8 to 12
3	Lat pull-down or assisted pull-up	Seated dumbbell shoulder press	2 to 3 sets of 8 to 12

• Warm up with a couple of lighter sets of the first exercise.
• Alternate A and B in each pair, resting about a minute in between.
• Stop each set 1 to 3 reps short of failure, so the sets are hard but your form holds.
• Write down your weights and reps and try to beat them next time.

Done twice a week, that gives your legs, chest and back at least 6 hard sets a week each, comfortably above the minimum. A third session, or a fourth pair for your arms, is a bonus, not a requirement. At home, a pair of adjustable dumbbells and a bench covers most of it.

On weeks when a child is ill or nights are terrible, do one session, or do the first two pairs only. Two sessions done beat four planned.

Food: a modest deficit you can eat with the family

You do not need separate meals. Eat what the family eats, and change your portions rather than the menu.

• Set a gentle rate. Aim to lose about 0.5 to 1% of your body weight a week. For a 90 kg (198 lb) dad, that is 0.45 to 0.9 kg (1 to 2 lb) a week. The free calorie and macro calculator gives you a starting target.
• Hit your protein. At 1.6 to 2.2 g per kg, a 90 kg dad needs roughly 145 to 200 g a day, towards the top while dieting. Add a portion of lean meat, fish, eggs, Greek yoghurt or beans to each meal.
• Fill half the plate with vegetables, and go easier on the pasta, cheese and oil.
• Decide about leftovers before you sit down. Finished-off plates and bites while cooking all count.
• Watch the evening drinks. Alcohol has calories too, and a couple of drinks most evenings add up over a week.

If you are newer to lifting or coming back after years off, you have a good chance of building muscle while you lose fat. Body recomposition explains who can do this and how to set it up. For more on squeezing fat loss into a full diary, see fat loss for busy people.

Sleep: protect what you can

Sleep affects what you lose, not just how you feel. In a 2010 study in the Annals of Internal Medicine, Nedeltcheva and colleagues put 10 adults with overweight on the same reduced-calorie diet for two weeks, twice: once with 8.5 hours in bed and once with 5.5. Their weight loss was similar, but with short sleep they lost 55% less fat and 60% more fat-free mass, which includes muscle, and they felt hungrier. It was a small, short study, but it shows that sleep is part of the plan. Sleep and muscle growth covers more of the research.

You cannot control a teething baby, but you can control some things:

• Go to bed earlier on the nights you can, instead of spending the quiet hours on your phone.
• Share night duties with your partner, if you can, so each of you gets some unbroken sleep.
• After a terrible night, still train, but drop a set from each exercise rather than skipping or grinding through.

Walk with the kids

Daily movement outside the gym, such as walking, chores and standing, varies a lot from person to person, and it is easy to lose when you are busy and tired. Pram walks, school runs on foot and trips to the park all count towards the 150 minutes a week of moderate activity in the UK guidelines, and you are with your children while you do it.

What progress looks like

Judge it over months, not weeks:

• Strength on your main lifts going up.
• Waist coming down.
• Weekly average weight falling slowly, or holding steady if you are gaining muscle as you lose fat.
• Photos every four weeks, in the same light and pose.

If your waist and strength are moving the right way, you are winning, whatever the scale says on a given morning.

How coaching helps

Most dads do not need more information. They need a plan that bends around real weeks and someone who notices when it is slipping. With one-to-one coaching from CoachAk, your training program and your calorie, macro and step targets are set in a private app, and your coach can set daily habits for you to tick off. You log your workouts, with your personal bests and your coach's comments, and each week you send a check-in that takes about three minutes, covering weight, training and nutrition adherence, steps, sleep, energy, hunger and stress, with body measurements and photos optional. Your coach replies with written feedback and adjusts the plan when a week goes sideways, and you can message with photos and voice notes in between. If you want a plan that fits around your family, apply for coaching.