Losing weight can feel overwhelming, but it doesn’t have to be. If you’re looking for easy ways to lose 15kg in 3 months, a practical and coach-approved plan can make a world of difference. In this article, we explore 10 realistic, evidence-based strategies recommended by fitness coach Amaka, paired with scientific insights and local relevance for South Africans.
- Top 10 Easy Ways to Lose 15kg in 3 Months
- 1. Follow the 80/20 Rule for Lasting Change
- 2. Prioritise Protein with Every Meal
- 3. Cut Out Liquid Calories
- 4. Walk 10,000 Steps Daily
- 5. Get 7 to 8 Hours of Sleep Each Night
- 6. Strength Train Three Times a Week
- 7. Be Consistent Over Weekends
- 8. Plan Your Meals in Advance
- 9. Focus on Progress, Not Perfection
- 10. Track More Than the Scale
- Is It Really Safe to Lose 15kg in 3 Months?
Top 10 Easy Ways to Lose 15kg in 3 Months
1. Follow the 80/20 Rule for Lasting Change

One of the most sustainable approaches to weight loss is the 80/20 rule. Eat clean, whole foods 80% of the time, and allow yourself 20% flexibility for treats.
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Coach Amaka explains, “Eat 80 percent whole, clean foods… and reserve 20 percent for your cravings, especially when you’re outside.”
This method reduces food guilt and helps people avoid binge eating. According to the Harvard School of Public Health, restrictive diets often fail because they are hard to maintain long-term.
2. Prioritise Protein with Every Meal

Including lean proteins in every meal keeps you full longer and helps preserve muscle mass.
Chicken, eggs, fish, beans, and Greek yoghurt are all excellent choices. Research from the National Institutes of Health (NIH) shows that higher protein intake increases satiety and reduces calorie intake.
Pairing protein with vegetables and whole grains makes fat loss more efficient.
3. Cut Out Liquid Calories

Drinks like sodas, juices, and sugar-heavy smoothies are sneaky calorie sources. They provide little satiety but add hundreds of calories daily.
Coach Amaka warns, “Juices, sodas, some high-calorie sugar-packed smoothies… leave you feeling hungry in a few hours.”
The CDC also cautions against liquid calories, stating that they contribute significantly to weight gain without satisfying hunger.
4. Walk 10,000 Steps Daily

Walking is a simple but powerful tool for weight loss. It’s easy on the joints and can be done anywhere.
Coach Amaka calls it a “game-changer,” noting that 10,000 steps daily helps burn fat without exhausting you.
For South Africans in Gauteng, parks like Emmarentia Dam or the Pretoria National Botanical Garden offer great walking routes.
5. Get 7 to 8 Hours of Sleep Each Night

Sleep is often overlooked but plays a crucial role in weight loss. Lack of sleep increases hunger hormones and reduces the energy to exercise.
Coach Amaka shares, “I used to sleep 4–5 hours and wonder why I was always hungry, super tired and unmotivated.”
6. Strength Train Three Times a Week

Losing weight is not just about cardio. Strength training helps tone muscles, boost metabolism, and prevent muscle loss.
Amaka advises including 2 to 3 strength workouts weekly. This can be done at home or at a gym.
A 2022 study in the Journal of Obesity & Metabolic Syndrome shows that resistance training significantly improves body composition during weight loss.
7. Be Consistent Over Weekends

Weekend bingeing can undo an entire week’s effort. Coach Amaka admits to this herself, saying, “I’d eat healthy Monday to Friday, then destroy it all on Saturday and Sunday.”
Instead, aim for balanced meals even on weekends. Consistency builds habits, and habits drive lasting change.
The CDC emphasises that long-term success in weight management comes from consistency rather than strict dieting.
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8. Plan Your Meals in Advance

Failing to plan is planning to fail. Meal prepping reduces the chances of making poor food choices when hungry or busy.
Amaka notes, “Meal prep stops you from cheating, and it helps you stay more focused to see results.”
Start by prepping proteins and chopping vegetables in bulk.
9. Focus on Progress, Not Perfection

A major mental shift in weight loss is focusing on effort, not flawlessness. Progress is more powerful than perfection.
Amaka says, “I wasn’t perfect every day, but I showed up most days. That’s what matters.”
10. Track More Than the Scale

The scale can fluctuate for many reasons, including water retention or hormonal changes. Coach Amaka recommends tracking inches, photos, energy levels, and clothing fit.
“Sometimes, the scale lies, but progress never does,” she concludes.
Is It Really Safe to Lose 15kg in 3 Months?
This goal requires losing roughly 1.25kg per week, which is above the standard recommendation of 0.5 to 1kg per week.
However, with supervision, a calorie deficit, and a balanced routine, it is achievable.
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If you’re committed and consistent, losing 15kg in 3 months is within reach. These easy tips offer a blueprint that’s doable, realistic, and rooted in science.
Rather than chasing perfection, focus on daily actions. From walking more to sleeping better, every step counts.
Consult a doctor or registered dietitian before starting a weight loss plan, especially one this ambitious.