I used to think sticking to a diet meant white-knuckling through every meal like it was an exam I could fail. Cut out all sugar. Stop eating after 7pm. Pick one of the dozen named diets and follow it perfectly, forever.
Sound familiar?
Virtually all of that advice is useless without context. Some of it is just noise.
Here’s what actually works. There are three things you need to maintain any diet for weight loss — plus one optional extra that makes a real difference:
A clear reason why you’re doing this. A simple plan you can follow. Structure in your day and week.
And then there’s accountability. Optional, but highly recommended. I’ll come back to it at the end.
Step 1: Find Your Why
This is the question you have to answer before anything else. And your reason has to make sense to you, not to anyone else.
Most people won’t understand why you feel compelled to change how you eat. You’ll run into diet saboteurs — people who, consciously or not, push back when you start making different choices. (I’ll cover them in detail later.)
By ‘diet’ here I mean a deliberate effort to lose weight for health or aesthetic reasons. The true definition of diet is simply what you eat day to day, but we’re talking about weight loss specifically.
People start diets all the time. But why are you starting one?
To lose weight? To feel healthier? Because something in your body — allergies, an autoimmune condition, just a general sense that food isn’t serving you anymore — is asking for a change.
Whatever it is, ask yourself: is this reason strong enough to hold when things get hard?
If not, dig deeper. Here are a few pointers:
Go beyond aesthetics. Most people start because they want to look better. That’s fine — but it rarely carries you through the tough weeks.
Think about your future self. If you’ve been trying to eat well and lose weight for months without much success, you probably feel a bit discouraged. Now imagine looking back over 4 weeks and having lost 5 or 10 pounds (2.3–4.5 kg). How would that feel?
Drill down. There’s an exercise I use called the Why Exercise. Pull out a piece of paper, or open a journaling app on your phone. Write your ‘why’ at the top:
I want to lose 20 pounds (9 kg), see my abs, and feel comfortable taking my shirt off whenever the moment calls for it.
Right below it, write ‘Why?’ and give your reason. Then ask why again. And again.
WHY? To look more athletic and get rid of my beer belly.
WHY? To feel more confident in summer social situations.
WHY?
Keep going until you reach something that actually moves you.
There will be days when your training, your diet, slow results, or life stressors make you want to quit. Your ‘why’ statement is what pulls you back from the brink.
When I feel discouraged or distracted, I read my old notes. They remind me why I started, and I’m right back on track.
Step 2: Develop a Plan
Everyone knows what they should do when they start a diet:
- Cut out junk food
- Stop snacking
- Eat out less
- Cook at home more often
- Eat healthier foods, period
All of that sounds lovely. None of it matters until you actually put something in place and do it regularly.
Planning is the easy part. Execution is what gets results.
If you decide to cut out junk food — how will you do it? Will you stop buying it so it’s not sitting in your kitchen tempting you? Will you skip the vending machine at work?
If eating out is keeping you from losing weight, what will you do instead? Going out feels easier and tastier and means no dishes. But those greasy restaurant meals make weight loss nearly impossible.
You’ll need to replace them with home-cooked meals made from fresh, whole foods. That’s the plan. Write it down.
Step 3: Create Structure and Constraints
All of this sounds simple on paper. Real life is messier — but it can also be simpler than you think if you set boundaries.
Structure throughout the week.
You already follow some kind of routine: wake up, morning ritual, work, maybe a workout, errands, wind down, sleep. Repeat.
Now think about what needs to shift. Are you spending too much time on things that don’t serve your goals — watching Netflix, scrolling social media?
You probably need to set aside regular cooking time instead of defaulting to takeout. Carve out minutes for a proper breakfast, pack a lunch, make dinner.
Start small. If you never eat breakfast, getting up an hour earlier to cook one sounds exhausting. So start with something easy: a smoothie with protein powder, fruit, Greek yogurt, and nuts. Make it so simple you can’t skip it.
Once that’s automatic, move on to lunch and dinner.
Constraints keep you honest.
We think we want total freedom, but without constraints things rarely get done. There’s a name for this: Parkinson’s Law — work expands so as to fill the time available for its completion.
What do constraints look like in practice?
You set aside 60 minutes three times per week for exercise and honour it.
You declare: I eat no junk food inside my own house — so any unhealthy snack has to be actively sought out outside.
You allow only one meal out per week.
These feel limiting at first. They create incredible progress in record time.
Skip the Fad Diets
You know a fad when you see one — or do you?
Every tabloid promises you can lose 30 pounds this month on some newly invented diet. Remember the Carnivore diet? High protein, zero carbs, typically red meat only. Some people subsist on nothing but beef steaks, salt, and water.
I understand it helps people with allergies or digestive issues. But as a long-term solution, I’m not convinced. It’s more of a stepping stone than a destination.
Then there’s the Keto craze — eat all the protein and fat you want without counting calories. Both Keto and Carnivore are fads in the broadest sense.
Fad diets are cyclical. Fat was demonised, then celebrated, then questioned again. Low-fat cookies promised everything while hiding hard-to-digest chemicals inside.
Here’s how a fad diet plays out: you jump on the bandwagon, eat only allowed foods, and keep going until you either reach your goal weight or lose control completely. Usually it’s the latter.
If you do succeed, you stay restrictive until you finally throw in the towel and eat yourself into a coma at the nearest buffet. Either way, fad diets are hard to sustain long-term.
Severely limiting carbs isn’t necessarily good for everyone. Populations around the world thrive on high-carb diets with low disease rates — look at the Okinawan diet, for instance.
Fad diets make you view foods as either good or bad. That mental divide is hard on your relationship with food. Feeling guilty about eating some of Aunt Sherry’s pumpkin pie because a nutrition expert told you sugar is dangerous? Great — now you’re stressed, and so is Aunt Sherry.
Make Whole Foods the Foundation
Junk food and fast food don’t belong in large amounts when you’re trying to lose weight or improve your health. Treat yourself, of course — but don’t fall for the idea that only calories matter while nutrients don’t.
Whole foods are those close to their natural state, minimally processed. Here’s a simple test: if you held this food up in front of someone from the early 1900s, would they recognise it? If not, it’s probably not whole.
A protein bar packed with binders and fillers counts as highly suspect. Anything overly processed or wrapped in plastic is worth a second look.
Whole foods should make up the majority of what you eat because they’re more nutrient-dense and keep you fuller longer than processed alternatives.
Indulge Your Favourite Foods on Occasion
Shifting toward whole foods doesn’t mean becoming a health food purist who eliminates everything you love. It means limiting them to some extent.
Pizza is amazing, right? But it’s packed with calories and easy to overeat. What if you had it once a week or a few times per month instead of every other day? Could that satisfy the craving?
Yes. You can absolutely maintain your diet while enjoying foods you love on a regular basis.
Have High Standards for Yourself
Eating nutritious, whole foods regularly is a form of self-respect. It doesn’t mean your plate has to be broccoli, kale, and dry chicken breast every day — that kind of monotony would leave you missing nutrients long-term.
If you value your health, set high standards for what goes into your body most of the time. You don’t have to be the person at work who lectures everyone about their food choices. But making smart nutritional decisions consistently matters more than being perfect.
Beware of Diet Saboteurs
Changing how you eat won’t be your only challenge. People close to you — sometimes people you love — may push back.
A diet saboteur is someone who aims, consciously or not, to stifle your efforts. Your coworkers bring donuts every week and have eaten one alongside you for months. When you suddenly decline, they might say:
No donut today? Are you sick?
Or: Are you on a diet? Randy tried one last week and failed. You’ll be back with us next week.
This happens at home too. If someone used to eating out or snacking with you suddenly finds you cooking at home instead, they notice — and sometimes get a little upset.
It’s normal. Here are ways to handle it:
- Communicate openly about your goals and why you’re changing.
- Polly refuse when offered junk food. I’m not hungry right now or I’m trying to cut back.
- Confront the behaviour. If someone gives you grief over declining a donut, tell them kindly that you won’t stand for the teasing.
- Avoid them as a last resort — though this is tough in practice.
No one’s opinion of your food choices matters more than your own.
Imagine Yourself in a Year
If you don’t change anything about how you eat today, you probably won’t look or feel any different 12 months from now. Most people think they’ll figure it out eventually. That ‘eventually’ rarely comes.
Six months pass. Same habits. No weight lost.
If you envision yourself in better shape a year from now, that future version of you is already eating differently than you are today.
Cut Yourself Some Slack
Dieting can be emotionally hard, especially if you’re the type who needs everything to be perfect. You’re developing new skills — and new skills always have rough edges at first.
Remember three things:
- You don’t need a perfect diet. You only need to be consistent.
- Forgive yourself quickly when you miss the mark, then get back on track.
- This is a long-term play, not a quick fix.
The ‘don’t miss twice’ rule works well here. You’re allowed to have wings and beer tonight or skip a workout because you worked late. Just don’t make the same mistake tomorrow. Force yourself back. Your future self will thank you.
Automate Instead of Relying on Willpower
In 2015, I wrote about building habits that serve you for life — not chasing big transformations in 30 days or hunting for the one food to eliminate. Most people overlook daily habits because they want a dramatic shortcut.
A celebrity can train twice a day with a chef preparing every meal and a dietary counselor mapping out rules. If you’re not landing shirtless blockbuster roles, that’s not your world.
You need habits that compound quietly. One of the easiest approaches is uniform eating: similar meals at similar times on most days. You focus on the same foods until it becomes automatic.
If you already snack at work or eat out at the same few restaurants each week, you’re already eating uniformly — you just need to shift what those default choices are.
Build Momentum, Not Motivation
The most accomplished people act in spite of not feeling motivated. Some don’t even actively enjoy their daily routines anymore — they’ve simply built a habit that runs on autopilot.
You don’t want to be stuck doing something you hate forever. But when it comes to diet, the payoff is almost always worth the effort, even on days it doesn’t feel exciting.
Build momentum through daily actions rather than waiting for inspiration to strike.
Get Support and Accountability
This is probably the most important piece of the puzzle.
When you’re trying to stick to a diet, it’s easy to feel like you’ll never get into shape. Everyone goes through that seemingly impossible phase at the beginning.
The old saying is true: two heads are better than one. Having people around who check in on their progress — whether it was a great day or a complete dumpster fire — keeps everyone accountable.
Here’s what the research says:
A review of technology-based weight-loss interventions identified five crucial components for success: self-monitoring, counselor feedback and communication, social support, use of a structured program, and an individually tailored program. Short-term results using these components are promising; long-term results depend on consistency.
A meta-analysis of adherence studies (published between January 2004 and August 2015) found that programs supervising attendance, offering social support, and focusing on dietary modification had better adherence than those relying exclusively on exercise without support.
A study on health professional recommendations showed that advice from a clinician increases motivation to lose weight — yet only a minority of overweight adults receive it. Most people go it alone, which is why so many regain their weight over time.
Those who tend to succeed have some or all of these in place: self-monitoring, feedback, social support, structure, and personalisation.
The Morning Reset
Here’s a small ritual that helps me stay grounded when diet adherence feels like a chore:
Morning light on the kitchen counter. A glass of water. Three deep breaths before I look at my phone or think about what I’ll eat for breakfast.
Five minutes. That’s it. It doesn’t solve everything, but it sets a gentle tone — enough to make the first food choice of the day feel intentional rather than reactive.
Frequently Asked Questions
How long does it take to stick to a diet?
There’s no fixed timeline. What matters is consistency over perfection. Most people see meaningful progress within 4 weeks if they follow a simple plan and forgive themselves when they miss the mark.
Which is better: a fad diet or whole-food eating?
Fad diets (Keto, Carnivore, Paleo) can jumpstart change but are hard to sustain long-term. A foundation of whole foods with occasional indulgences tends to be more sustainable — and gentler on your relationship with food.
How do I deal with people who push back when I eat differently?
Communicate your reasons openly, politely decline offers of junk food, and remember that no one’s opinion of your choices matters more than your own. Most diet saboteurs adjust once they see you’re committed.
A note from Hazel: I used to think my diet had to be perfect to count. Now I know 80/20 is enough — consistent, not flawless. The days I forgive myself quickly are the days the habit holds.