Struggling to lose weight in winter? The cold, holiday treats, comfort foods, and shorter days make it feel almost impossible sometimes.
But according to renowned Argentine nutritionist and obesity specialist Dr. Máximo Ravenna, it is possible to drop significant weight — even in the toughest season — with the structured plan he shares in his book Más Vida, Menos Kilos.
His approach promises 6–8% body weight loss for women and 8–10% for men in just one month, with many people seeing visible results already in the first 14 days.
This is not a crash or starvation diet. It’s a balanced, medically supervised plan that focuses on real food, portion control, high protein, fiber, and smart swaps to create a safe calorie deficit while keeping you satisfied and energized.
How the 14-Day Diet Plan Works
Dr. Ravenna’s method is built on:
- High protein → preserves muscle, increases satiety
- Low refined carbs & sugar → stabilizes blood sugar & insulin
- High fiber & vegetables → fills you up, supports digestion
- Moderate healthy fats → keeps hormones balanced
- Small, frequent meals → prevents hunger spikes
- No alcohol → alcohol stalls fat loss & raises triglycerides
The first 7–14 days are stricter to jumpstart metabolism and reduce bloating/water weight. After that, you transition to a more flexible maintenance phase.
Foods to Eat & Avoid
Eat Freely
- Lean proteins: skinless chicken, turkey, fish (hake, merluza, salmon), egg whites, low-fat cheese, lean ham/pastrami
- Non-starchy vegetables: lettuce, spinach, zucchini, broccoli, green beans, carrots, cucumber, celery
- Low-sugar fruits: apple, pear, berries, kiwi, plum, citrus (in moderation)
- Whole grains (controlled): brown rice, quinoa, oats, whole-grain bread (small portions)
- Healthy fats (small amounts): olive oil (1–2 tsp/day), avocado (small)
- Beverages: water, herbal tea, black coffee (no sugar)
Avoid Completely
- Added sugars: sweets, soda, juice, honey, jam
- Refined carbs: white bread, white rice, pasta, pastries, sugary cereals
- Fried foods & high-fat: butter, cream, fatty meats, full-fat dairy
- Alcohol: beer, wine, spirits
- Processed foods: chips, fast food, canned soups with salt
14-Day Meal Plan by Dr. Máximo Ravenna
This is the first 14 days — the strictest phase for fastest results. Eat slowly, chew well, drink water between meals.
Day 1
- Breakfast: Coffee with skim milk + 1 low-fat yogurt + 1 cup cherries
- Lunch: Vegetable broth + green salad with 3 tbsp lentils + 1 hard-boiled egg + 1 citrus juice
- Snack: Broth + 2 slices lean ham + 2 slices low-fat cheese
- Dinner: Vegetable broth + ¼ grilled chicken with oregano + broccoli & tomato salad + ½ pear with sugar-free gelatin
Day 2
- Breakfast: Infusion or coffee with skim milk + 4 thin slices low-fat cheese
- Lunch: Vegetable broth + homemade hamburger (lean beef) + green salad & tomato
- Snack: Broth + 1 cup fruit salad + 1 tbsp low-fat spreadable cheese
- Dinner: Broth + grilled sirloin with oregano + carrot, cabbage & tomato salad + 1 hard-boiled egg white + sugar-free gelatin
Day 3
- Breakfast: Coffee with skim milk + 1 banana + 1 cup milk or 1 low-fat yogurt
- Lunch: Vegetable broth + grilled chicken breast + green leafy salad & tomato + 1 apple
- Snack: Infusion with skim milk + 1 low-fat yogurt
- Dinner: Broth + mixed raw vegetable salad (lettuce, tomato, cucumber, onion) + 6 kanikama (imitation crab) + hearts of palm + small melon + sugar-free gelatin
Day 4
- Breakfast: Infusion with skim milk + 1 fresh fruit + sugar-free gelatin
- Lunch: Vegetable broth + baked chicken breast + celery, apple & hearts of palm salad + 1 citrus juice
- Snack: Coffee with skim milk + 1 low-fat yogurt + 1 kiwi
- Dinner: Broth + tomato & hearts of palm salad + carrot + beet + 1 small can natural tuna + 1 fresh fruit
Day 5
- Breakfast: Coffee with skim milk + strawberry smoothie (1 cup milk + 1 cup strawberries)
- Lunch: Broth + ½ grilled chicken breast + spinach & mushroom salad + 1 fresh fruit
- Snack: Coffee with skim milk + 1 low-fat yogurt
- Dinner: Broth + omelette (1 whole egg + 2 whites + 2 thin slices cheese) + small spinach & hearts of palm salad + 1 fresh fruit
Day 6
- Breakfast: Broth with skim milk + 1 fresh fruit + 1 yogurt
- Lunch: Broth + raw mixed vegetable salad + ½ cup brown rice + ½ cup legumes + 1 hard-boiled egg white + 1 citrus fruit
- Snack: Broth with skim milk + 3 slices cooked ham, loin or pastrami
- Dinner: Broth + boneless chicken thigh with broccoli & tomato salad + 1 seasonal fruit
Day 7
- Breakfast: Infusion with skim milk + 1 banana
- Lunch: Vegetable broth + baked steak (lean) + 1 tsp mustard + cucumber, radish, cherry tomato & onion salad + 1 cup light gelatin
- Snack: Broth with skim milk + 2 cheese rolls + 2 ham rolls
- Dinner: Broth + tomato, hearts of palm, carrot, beet & 1 small can natural tuna salad + 1 fresh fruit
Days 8–14 Follow the same structure as Days 1–7, rotating meals for variety. After Day 14, transition slowly to a balanced maintenance plan (add more vegetables, fruits, whole grains, healthy fats).
Tips for Success on the 14-Day Plan
- Drink 2.5–3 liters water/day (spread throughout)
- Add light walking (30 min/day) → accelerates results
- Use non-iodized salt (small amounts) & lots of herbs/spices
- Prep broth & proteins ahead — saves time
- Sleep 7–9 hours — crucial for fat loss
- Weigh weekly (morning, after bathroom) — track waist too
Common Mistakes to Avoid
- Adding extra salt/sauces → hidden sodium adds up
- Skipping meals → causes blood sugar crashes & binge risk
- Not drinking enough water → false hunger & fatigue
- Extending beyond 14 days without doctor supervision → risks nutrient gaps
Expected Results
- Week 1: 4–8 lbs loss (mostly water + some fat), less bloating
- Week 2: Additional 3–7 lbs, flatter stomach, fewer cravings
- Total 14 days: 8–15 lbs possible (average 6–10% body weight)
- After 14 days: Taste buds reset — sweets taste too sweet; easier to maintain healthy eating
Final Thoughts
Dr. Máximo Ravenna’s 14-Day Diet Plan is a structured, medically-inspired way to lose significant weight safely and kickstart better habits — even in winter when temptation is high. It’s not a forever diet — it’s a powerful reset. After 14 days, transition to a balanced, sustainable plan (high protein, veggies, moderate carbs/fats, calorie awareness).
Important note This is a medical-style eating plan. Results vary. Consult your doctor before starting — especially if you have diabetes, thyroid issues, kidney problems, or take medications.
