A complete guide
Everything you need to understand food, fuel your body, and reach your goals — simply explained.
Food is not just calories. It is your body's fuel, building material, and medicine. Understanding what each nutrient does helps you make smarter choices every day.
Your body's primary energy source. Opt for whole grains, oats, sweet potato.
Builds and repairs muscle tissue. Found in meat, fish, eggs, legumes.
Supports brain function and hormones. Avocado, nuts, olive oil.
Packed with vitamins and fibre. Fill half your plate with these.
Regulates every body function. Drink at least 8 glasses (2L) daily.
Micronutrients that keep systems running. Eat a rainbow of colours.
Half your plate should be vegetables and fruits. These provide fibre, vitamins, and keep you full.
A quarter protein — chicken, fish, beans, eggs. Aim for a palm-sized portion.
A quarter whole grains — brown rice, whole wheat bread, sweet potato.
Add healthy fats in small amounts — a drizzle of olive oil, a few nuts, or half an avocado.
1. Eat whole foods — if it grew from the ground or
had a mother, it's probably a good choice.
2. Limit ultra-processed foods — anything with more
than 5 unrecognisable ingredients.
3. Stay hydrated — drink water before every meal.
It aids digestion and reduces overeating.
Most cravings are not weakness — they are a signal your meal was missing a key element. Every meal should contain all three parts to keep blood sugar steady and hunger silent for hours.
The most satiating macronutrient. Slows digestion and keeps hunger hormones (ghrelin) low for 3–5 hours. Aim for 25–40g per meal. Eggs, chicken, fish, lentils, Greek yoghurt.
Provides steady glucose without the spike and crash. Choose whole grains, oats, sweet potato, or brown rice — never refined white bread or sugary cereals, which trigger cravings 2 hours later.
Vegetables slow absorption of everything else, extending fullness. Add a small amount of healthy fat (avocado, olive oil, nuts) — fat signals your brain that the meal is truly complete.
If you get hungry or crave sweets within 2 hours of eating, your meal was likely missing protein or fibre. Next time, simply add a palm of protein and a fistful of vegetables — cravings vanish without willpower.
Eating the right foods in the right combinations keeps your energy rock-steady all day. These pairings slow glucose absorption, provide sustained fuel, and prevent the afternoon crash.
Most overeating happens not from real hunger but from boredom, stress, or habit. Use this 1–10 hunger scale: eat when you reach 3–4, stop at 6–7. Never let yourself reach 1 (ravenous) — that is when poor decisions happen.
1–2
Starving
Danger zone
3–4
Hungry
Eat now
✓
5–6
Satisfied
Stop
here ✓
7–8
Full
Slow down
9–10
Stuffed
Overeaten
Maintenance calories are how many you need to eat per day to stay exactly the same weight. Eat this amount and your body is in perfect balance.
TDEE = Total Daily Energy Expenditure — the number of calories you burn in a day.
Just existing — breathing, heartbeat, digestion. ~60–70% of total.
Intentional workouts. Varies hugely by intensity.
Walking, fidgeting, housework. Often underestimated.
Thermic effect of food — ~10% of intake goes to digesting.
A common rough estimate: body weight (kg) × 33 = maintenance calories. For example, a 70 kg person needs roughly 2,300 kcal/day. Use the calculator above for a more accurate number.
Weight loss is simply eating fewer calories than you burn. The key is doing it in a sustainable, healthy way — not crash dieting.
Use the calculator in Chapter 2. This is your starting point. You need to eat below this number.
Subtract 300–500 kcal from your TDEE. This leads to safe, steady fat loss of 0.3–0.5 kg per week. Avoid going below 1,200 kcal (women) or 1,500 kcal (men).
Fill your plate with vegetables, lean proteins, and fibre. These keep you full without spiking calories. Avoid liquid calories — sodas, juices, alcohol.
Aim for 1.6–2.2g of protein per kg of body weight. Protein keeps you full and preserves muscle while losing fat.
Add walking, light cardio, or resistance training. Even 30 mins of walking burns ~150 extra kcal and improves energy.
1 kg of fat = ~7,700 kcal. At a 500 kcal daily deficit, expect to lose ~1 kg every 2 weeks. Slow and steady wins.
Skip ultra-processed snacks, sugary drinks, fast food, and alcohol — they are calorie-dense with little nutrition. You don't need to ban them, but limit them to rare occasions.
Calorie counting works but burns mental energy and can create an unhealthy relationship with food. This framework lets you lose weight by changing what and how you eat — not by obsessing over numbers.
Replace white rice with brown rice or cauliflower rice. Swap sugary drinks for sparkling water. Trade crisps for mixed nuts. Same volume — smarter choices. You never feel deprived.
Before eating anything else on your plate, eat all your vegetables first. This fills your stomach with low-calorie food, so you naturally eat less of everything else without trying.
Without counting a single calorie, fill half your plate with vegetables at every meal. This single habit creates a 200–400 kcal daily deficit automatically — the equivalent of a 30-minute run.
Cut out (1) sugary drinks, (2) alcohol, (3) ultra-processed snacks. These three alone eliminate 400–800 empty calories per day — without eating less food or feeling hungry.
Eat all your meals within an 8–10 hour window (e.g. 8am–6pm). This naturally reduces calorie intake by 15–20% and improves insulin sensitivity — no restriction required.
Stop eating when 80% full — not stuffed. In Japanese culture this is called hara hachi bu. Over a week, this small habit saves thousands of calories effortlessly and painlessly.
You don't need a meal plan, a special diet, or an app. Build your plate with the 3-Part Structure (protein + slow carb + fibre), control portions intuitively using the hunger scale, and eliminate liquid calories. These three actions alone create the deficit needed for steady fat loss — no spreadsheet required.
Healthy weight gain means building muscle and adding useful mass — not simply eating junk food. It requires a calorie surplus plus the right nutrients.
Take your TDEE and add 250–500 kcal per day. A smaller surplus (250 kcal) builds muscle with minimal fat. Bigger surpluses add weight faster but more fat too.
1.6–2.2g per kg of body weight. Protein is the raw material for muscle. Think eggs, chicken, beef, fish, Greek yoghurt, cottage cheese.
Nuts, nut butter, avocado, whole milk, olive oil, oats, rice, sweet potato, bananas. These pack a lot of nutrition into reasonable portions.
If you struggle to eat enough, split your calories into 4–6 meals. Add healthy snacks: trail mix, smoothies, cheese, peanut butter on whole grain toast.
Lift weights or do bodyweight exercises 3–4× per week. This directs extra calories into muscle growth rather than fat storage.
Muscles grow during sleep. Aim for 7–9 hours per night. Poor sleep spikes cortisol, which slows muscle building.
Eat more than you burn, train with weights, and get enough sleep. Without resistance training, your body will store most of the surplus as fat rather than muscle. Combine food + exercise for best results.
Knowledge about food is worthless without action. This chapter is about the science of behaviour — how to make healthy eating automatic, enjoyable, and permanent.
Michael Pantalon's research at Yale School of Medicine reveals a counterintuitive truth: telling yourself why you should change almost never works. Instead, the fastest way to change behaviour is to ask yourself why you already want to — even just a little.
The method works in 6 questions that bypass internal resistance and tap into your own intrinsic motivation. You stop fighting yourself and start pulling yourself forward.
Why might you want to change? — Ask yourself: "Why would I, even a little, want to eat better?" Don't ask "should I" — ask "why might I want to." Find even one small reason. There is no wrong answer.
Rate your readiness. — On a scale of 1–10, how ready are you to make this change? Even if you say 3, that is enough. Move to the next step regardless.
Why not lower? — If you said 3, ask: "Why did I say 3 and not 1?" This forces you to articulate the reasons you DO want to change. Your brain begins to own the motivation as its own.
Imagine you have already changed. — "If I did start eating well, what would be different about my life?" Visualise in detail — your energy, confidence, how your clothes feel, how you perform at work or sport.
Why are those reasons important? — Dig one layer deeper. "Why does having more energy actually matter to me?" Connect the food change to your deeper values, relationships, and identity.
What is your next step? — Commit to the smallest possible first action. Not "I will eat perfectly from Monday." Instead: "Tomorrow morning I will add one egg to my breakfast." Specific. Small. Now.
Every habit — good or bad — runs on the same neurological loop. Understanding it lets you hijack unhealthy eating patterns and install better ones automatically, without relying on willpower every day.
The trigger that starts the habit (time, place, emotion)
The desire or motivation behind the habit
The actual behaviour (eating the snack)
The feeling that reinforces the loop
Keep the same cue and reward — only change the response. If you eat chocolate at 3pm when stressed (cue: stress → reward: comfort), replace chocolate with Greek yoghurt and berries. Same cue, same reward feeling, healthier response. Your brain accepts the swap over 2–4 weeks of repetition.
Don't say "I'll eat better." Say "When I sit down for lunch on weekdays, I will eat a salad with protein first." Research shows this specific formula — When X happens, I will do Y — increases follow-through by up to 300% compared to vague intentions.
Make healthy food visible (fruit bowl on the counter, cut vegetables at eye level in the fridge) and unhealthy food invisible (junk on high shelves or out of the house entirely). You eat what you see. Design your environment, not your willpower.
Attach a new healthy habit to an existing one. "After I make my morning coffee, I will drink one full glass of water first." Stacking new behaviours onto existing ones requires zero extra motivation — the old habit becomes the trigger.
When starting a new habit, make it take less than 2 minutes. Instead of "meal prep for the week," just "chop one vegetable tonight." Once you start, momentum takes over. The goal is to begin, not to be perfect. Starting is everything.
Instead of "I'm trying to eat healthy," say "I am someone who eats well." Every healthy meal is a vote for the person you are becoming. Your identity shapes behaviour more powerfully than any amount of motivation or discipline.
Missing one day is an accident. Missing two days is starting a new (bad) habit. If you eat poorly one day, the most important thing is to return to your plan at the very next meal — not next week, not Monday. Resilience beats perfection every time.
Only allow yourself something you love (a podcast, a TV show, a favourite playlist) while doing a healthy behaviour (meal prepping, walking, cooking). This creates a positive association that makes you genuinely look forward to healthy actions.
Sustainable change doesn't happen in a flash of motivation. It unfolds in phases. Knowing where you are removes frustration and keeps you moving forward even when progress feels slow.
This phase is about paying attention, not being perfect. Learn what hunger feels like. Notice your energy after different meals. Try the 3-Part Meal Structure. Your only job is to show up consistently — not to optimise. Discomfort is normal; it means you are rewiring.
Habits start to click. Meal prep becomes routine. You begin to prefer how healthy food makes you feel over how junk food tastes. Slip-ups happen — apply the Never Miss Twice rule. Focus on environment design and habit stacking this phase.
Healthy eating is no longer something you do — it is who you are. Your food choices become automatic. Social eating, travel, and stressful weeks no longer derail you because your defaults have fundamentally changed. Results compound rapidly in this phase.
You have built a lifestyle, not followed a diet. Focus now shifts to fine-tuning — adjusting calories for your evolving goal, exploring new foods, optimising for performance. Healthy eating feels as natural and effortless as brushing your teeth.
Eat: Protein + slow carbs + vegetables at every
meal. Drink water first.
Lose weight: Swap, don't restrict. Half-plate
vegetables. Eliminate liquid sugar.
Gain weight: Calorie surplus of whole foods. Lift
weights. Sleep well.
Stay consistent: Design your environment. Stack
habits. Become the identity.
Start now: Use the Instant Influence method. Find
your one reason. Do one thing today.