How to Lose Weight Fast (And Keep It Off)

Everyone wants to lose weight fast. And while there are no shortcuts, there are smarter strategies that produce faster results without destroying your metabolism or losing your mind. Here's what actually works.

The Only Rule That Matters: Calorie Deficit

Fat loss comes down to one principle: burn more calories than you consume.

1 lb of fat = ~3,500 calories
A deficit of 500 cal/day = ~1 lb lost per week
A deficit of 750 cal/day = ~1.5 lbs lost per week

That's the math. Everything else — meal timing, food choices, supplements — is just optimising around this core truth.

Step 1: Calculate Your Calories

Use this formula to estimate your maintenance calories (TDEE):

Sedentary (desk job, no exercise): Bodyweight (lbs) × 14
Moderately active (3x/week exercise): Bodyweight (lbs) × 16
Very active (5x/week intense training): Bodyweight (lbs) × 18

Example: 180 lb person, moderately active = 180 × 16 = 2,880 calories/day to maintain

For fat loss, subtract 500–750 from that number: 2,130–2,380 calories/day

Step 2: Prioritise Protein

Protein is your biggest weapon in a fat loss phase because it:

Keeps you full longer
Preserves muscle while in a deficit
Has a high thermic effect (burns ~30% of its own calories during digestion)

Target: 1g of protein per pound of bodyweight daily.

Best high-protein, low-calorie foods:

Chicken breast (165 cal, 31g protein per 100g)
Canned tuna (130 cal, 29g protein per 100g)
Egg whites (52 cal, 11g protein per 100g)
Cottage cheese (98 cal, 11g protein per 100g)
Greek yogurt (59 cal, 10g protein per 100g)

Step 3: Fill Up on Volume Foods

The secret weapon of fat loss: eat high-volume, low-calorie foods that fill your stomach without wrecking your deficit.

Food	Calories per 100g
Cucumber	16
Lettuce	15
Courgette/Zucchini	17
Watermelon	30
Strawberries	33
Broccoli	34
Chicken breast	165

Build your plate around these and you can eat large, satisfying meals while staying in a deficit.

Step 4: Cut the Liquid Calories

One of the fastest wins in fat loss is cutting out drinks that don't fill you up:

Soda: 140–200 cal per can
Fruit juice: 110–150 cal per glass (same sugar as soda)
Alcohol: 100–250 cal per drink, plus it lowers inhibitions around food
Fancy coffees: 300–500 cal for lattes and frappuccinos

Switch to: water, sparkling water, black coffee, plain tea.

Step 5: Strength Train

Most people only do cardio when trying to lose weight — that's a mistake. Strength training is essential because:

It builds/preserves muscle (muscle burns more calories at rest)
It creates an "afterburn effect" (elevated metabolism for 24–48 hours post-workout)
It makes you look lean and toned, not just "skinny"

Aim for 3–4 strength sessions per week alongside any cardio.

Step 6: Cardio — How Much?

Cardio accelerates fat loss but doesn't need to be excessive:

Walking: The most underrated fat loss tool. 10,000 steps/day burns 400–600 extra calories.
LISS (steady-state): 30–45 min at moderate pace, 3–4x/week
HIIT: 20 min, 2–3x/week — great for time-crunched people

💡 You can't out-run a bad diet. Cardio is the accelerator, diet is the engine.

Realistic Timeline

Goal	Time Frame
Lose 10 lbs	7–10 weeks
Lose 20 lbs	14–20 weeks
Lose 30 lbs	5–7 months

Anyone promising faster results is either selling something or suggesting an approach that will leave you gaining it all back.

The 3 Habits That Keep It Off

Track your food — even loosely. Awareness is everything.
Weigh yourself weekly (not daily) — daily fluctuations are normal and misleading.
Build a sustainable deficit — a 300 cal deficit you can maintain beats a 1,000 cal deficit you'll abandon in 2 weeks.

Slow and steady isn't a compromise — it's the strategy that works.