Skip to main content
PRO 6 min read

High-calorie nutrition – who is it recommended for? Overview of calorie-dense foods and meals

Sophia Williams
Sophia Williams ✓
Diets Premium Expert • 23.10.2026
✓
Scientifically reviewed by a clinical dietitian: This article has been peer-reviewed for adherence to IŻŻ, WHO, and PTGiP clinical nutritional standards.
Diets Premium Expert Sophia Williams min read 6 min Scientifically reviewed by a clinical dietitian 23.10.2026
High-calorie nutrition – who is it recommended for? Overview of calorie-dense foods and meals

Smart Voice

•

Listen to the article content live

0:00 / 0:00
Key Takeaways
A BMI below 18.5 kg/m2 indicates underweight status and serves as the first red flag that the body is not obtaining sufficient nutrients. Malnutrition may stem from inadequate food intake but can also signal serious health conditions. Despite the common occurrence of underweight (as well as overweight) individuals, this issue is frequently disregarded in the context of contemporary weight-loss trends.
Meal Plan

Want to apply these guidelines in your daily diet?

Our smart diet generator creates a tailored meal plan in 3 minutes based on the recommendations in this article.

PRO Content PRO

This article is professional premium content (PRO) provided in its entirety.

Fundamentals of a High-Calorie Diet

A high-calorie diet should not be a random approach but rather based on the principles of healthy eating, while also ensuring an appropriate caloric surplus relative to individual needs. The goal of this diet is to provide at least 500 kcal/day more than the daily energy requirement, which will allow for a systematic, steady weight gain of approximately 0.5 kg per week.

Here are some practical tips for individuals aiming for healthy weight gain:

  • Ensure Meal Variety: Consume 5–6 small meals regularly at fixed times.
  • Include All Food Groups: Plan your menu to include food products from all groups in appropriate proportions.
  • Foundation of the Daily Diet: Whole-grain products should form the basis of your daily menu, such as wholemeal bread (rye, graham, pumpernickel), natural flakes (oats, spelt, millet, barley, rye), coarse groats (buckwheat, pearl barley), and brown rice.
  • Diversify Your Plate: For instance, serve one slice of wholemeal bread and one of wheat bread for breakfast, or for lunch, white rice with red or wild rice, enhanced with aromatic herbs.
  • Protein-Rich Foods: Do not forget products rich in complete protein. Good sources include animal products (eggs, milk and dairy products, poultry, veal, beef, fish) as well as plant-based products (legumes), from which you can prepare tasty sandwich spreads or soups.
  • High-Energy Density Products: Include high-energy density products in your planned menu (olive oil and vegetable oils, nuts, dried fruits, pumpkin seeds, sunflower seeds). Nuts, dried fruits, or natural flakes make an excellent snack and a valuable addition to prepared dishes.
  • Quality of Fats: Pay attention to the quality of fats consumed, reducing the proportion of saturated forms. Instead, choose those rich in unsaturated fatty acids, especially polyunsaturated omega-3 fatty acids. You will find them in vegetable oils (olive oil, rapeseed oil), walnuts, pumpkin seeds, avocados, and fatty sea fish (salmon, Atlantic mackerel, herring). These products will also contribute to increasing the energy density of your diet in a healthy way.
  • Minimize Processed Foods: Limit the consumption of highly processed foods (bars, filled wafers, instant products, and fast food) due to their high content of simple sugars and trans fatty acids.
  • Healthier Sweet Alternatives: To increase the energy value of your diet, opt for healthier alternatives by preparing sweets based on valuable, natural ingredients (milk-fruit smoothies; natural yogurt with fresh or dried fruits, cereal flakes, nuts, or pumpkin seeds; fruit salad; cereal cookies with dried fruits and honey).
  • Enhance Flavor and Stimulate Appetite: You can enrich prepared dishes with spices, dried or fresh herbs (Cilantro / Coriander, ginger, cumin, dill, basil, marjoram, rosemary), which will further enhance the taste of the dishes and stimulate your appetite.

Who Benefits from a High-Calorie Diet?

A high-calorie diet is dedicated to individuals with underweight who wish to gain weight in a healthy manner. In practice, it should be introduced gradually to accustom the body to an increased portion of calories. An adequate caloric surplus will also be necessary in the diet of people with various diseases who often experience malnutrition problems, such as hyperthyroidism, cystic fibrosis, chronic pancreatitis, or eating disorders (anorexia nervosa).

In these cases, as well as in any other, a high-calorie diet is recommended, tailored individually for each patient, taking into account physical activity, coexisting diseases, and potential nutrient deficiencies. Professional dietary consultation is crucial to ensure that weight gain is healthy and sustainable, without adverse health effects.

High-Energy Density Products

To increase the energy density of the diet, it is recommended to include high-calorie products in meals. It is known that the caloric value of food is greatly influenced by the cooking method: frying in fat; adding butter, olive oil, vegetable oils (sunflower, rapeseed, grapeseed) to prepared dishes, as well as seasoning them with cream, if tolerated by the patient.

However, it is worth noting that we have a large group of healthy products that provide not only a significant amount of calories but also vitamins, mineral ingredients, and many other compounds with health-promoting properties (dried fruits, banana, avocado, nuts, sunflower seeds). Dried fruits, nuts, muesli, or even dark chocolate are excellent as components of various desserts and as a tasty snack.

Interesting Fact!

The energy value of food products primarily depends on their water and lipid content – the main energy carriers. (Table 1)

Table 1. Fat and Energy Content in Selected Food Products [2]

  • Edible Fats: 80 – 100% Fat (very high), 750 – 900 kcal/100 g
  • Nuts, Halva, Chocolate, Crackers, Bacon, Smoked Eel: 20 – 40% Fat (high), 450 – 600 kcal/100 g
  • Oatmeal, Pasta, Groats, Fatty Meats and Cold Cuts, Yellow Cheeses, Cream: 10 – 20% Fat (medium), 250 – 400 kcal/100 g
  • Bread, Lean Meat, Poultry Cold Cuts, Eggs, Cottage Cheese, Fruit Preserves, Ice Cream: 2 – 15% Fat (low), 150 – 250 kcal/100 g
  • Lean Fish, Vegetables and Fruits, Mushrooms, Milk: 0 – 2% Fat (very low), 30 – 100 kcal/100 g.

High-Calorie Diet – Sample Menu

Planning nutrition for individuals aiming to gain weight, in light of contemporary weight-loss trends, poses a significant challenge. Reluctance to consume regular meals, not only among underweight individuals, is usually caused by a lack of ideas, motivation, and time to prepare tasty, wholesome dishes. Therefore, it is very important to consider the patient's/client's personal preferences regarding the selection of products and dishes, as well as to provide guidance on time management and culinary variations using various cooking techniques.

Attention!

This menu is dedicated to healthy individuals without digestive tract ailments or other coexisting conditions who wish to gain weight in a healthy way.

Breakfast:

  • Omelet with smoked salmon, spinach, and cherry tomatoes
  • Weak infusion of black tea with rose jam

Second Breakfast:

  • Wholemeal bread with dried plum (1 slice)
  • Hummus
  • Greek yogurt with buckwheat honey, kiwi, and walnuts

Lunch:

  • Cream of broccoli soup with croutons
  • Boiled potatoes with dill
  • Cod baked in foil with dill and garlic
  • Carrot salad with horseradish and walnuts
  • Freshly squeezed orange juice

Afternoon Snack:

  • Strawberry-blueberry smoothie with kefir (fat content: 2%) and dried dates

Dinner:

  • Wholemeal bread (2 slices)
  • Butter with Greek-style yogurt
  • Greek salad
  • Forest fruit tea

A high-calorie diet undoubtedly requires self-discipline and a kilogram of patience, because the art is not to provide the body with a caloric surplus through visits to local fast-food restaurants, but rather in the right motivation to act, valuable dietary tips from a dietitian, and the patient's adherence to these recommendations.

Sophia Williams

Sophia Williams

✓

Diets Premium Expert

Diets Premium team expert. Specializes in nutrition plans, strength sports, and training plans.

View Profile →
Recommended articles in this category

Related Articles

Discover similar publications and expert insights.

Long-Term Effects of Stress on the Body Related to Diet
Nutrition
Long-Term Effects of Stress on the Body Related to Diet
⏱ 5 min czytania
#Nutrition
Excessive Food Consumption During Pregnancy – An Invisible Threat to Expectant Mothers
Pregnancy & Motherhood
Excessive Food Consumption During Pregnancy – An Invisible Threat to Expectant Mothers
⏱ 6 min czytania 📚 Pregnancy & Motherhood
#Nutrition #Pregnancy
Dangerous Eating Disorders – Symptoms, Treatment, Diet
Nutrition
Dangerous Eating Disorders – Symptoms, Treatment, Diet
⏱ 4 min czytania
#Nutrition #Eating Disorders
Excess Abdominal Fat Tissue – Description, Causes, Treatment, Diet
Nutrition
Excess Abdominal Fat Tissue – Description, Causes, Treatment, Diet
⏱ 7 min czytania
#Nutrition
Polish Remedies for Adolescent Acne and Nutrition
Skin Health
Polish Remedies for Adolescent Acne and Nutrition
⏱ 7 min czytania 📚 Skin Health
#Nutrition #Acne And Nutrition
Sweet Basil (Common Basil)
Manganese In Diet
Sweet Basil (Common Basil)
⏱ 3 min czytania
#Manganese In Diet #Vitamin E Source
Traditional Natural Flu Remedies – Immune Support and Infection Relief
Nutrition
Traditional Natural Flu Remedies – Immune Support and Infection Relief
⏱ 1 min czytania 📚 Nutrition
#Nutrition
National Hand Care Products for Beautiful Hands
Nutrition
National Hand Care Products for Beautiful Hands
⏱ 2 min czytania 📚 Nutrition
#Nutrition
Modification of Taste Preferences - Is It Even Achievable?
Dietary Health
Modification of Taste Preferences - Is It Even Achievable?
⏱ 6 min czytania 📚 Dietary Health
#Nutrition #Dietary Preferences
Treatment of Self-Worth Disorders Associated with Dysmorphophobia
Nutrition
Treatment of Self-Worth Disorders Associated with Dysmorphophobia
⏱ 4 min czytania 📚 Nutrition
#Nutrition
Sleep Will Help You Regain Health and Extend Your Life!
Nutrition
Sleep Will Help You Regain Health and Extend Your Life!
⏱ 1 min czytania 📚 Nutrition
#Nutrition
Chinese Angelica – Features and Effects of an Extraordinary Plant
Healthy Lifestyle
Chinese Angelica – Features and Effects of an Extraordinary Plant
⏱ 3 min czytania 📚 Healthy Lifestyle
#Nutrition
Act, Live, and Fulfill Your Goals. Surviving Is Not the Same as Living!
Healthy Lifestyle
Act, Live, and Fulfill Your Goals. Surviving Is Not the Same as Living!
⏱ 5 min czytania 📚 Healthy Lifestyle
#Nutrition
Effects and Side Effects of Saw Palmetto – Does Its Use Truly Benefit Hair?
Physical Wellness
Effects and Side Effects of Saw Palmetto – Does Its Use Truly Benefit Hair?
⏱ 5 min czytania 📚 Physical Wellness
#Nutrition
Myotonic Dystrophy – Origin, Inheritance, Symptoms, Effects, Treatment and Diet
Nutrition
Myotonic Dystrophy – Origin, Inheritance, Symptoms, Effects, Treatment and Diet
⏱ 4 min czytania 📚 Nutrition
#Nutrition
National Methods for Combating Scabies
Nutrition
National Methods for Combating Scabies
⏱ 1 min czytania 📚 Nutrition
#Nutrition
Dopamine and Its Origin in Food
Nutrition
Dopamine and Its Origin in Food
⏱ 3 min czytania 📚 Nutrition
#Nutrition
Touch Promotes Child’s Growth!
Nutrition
Touch Promotes Child’s Growth!
⏱ 1 min czytania 📚 Nutrition
#Nutrition
Bee Sting – Properties, Ointment, Cost
Nutrition
Bee Sting – Properties, Ointment, Cost
⏱ 4 min czytania 📚 Nutrition
#Nutrition
Polycystic Ovary Syndrome – Causes, Symptoms, Therapy and Diet
Nutrition
Polycystic Ovary Syndrome – Causes, Symptoms, Therapy and Diet
⏱ 9 min czytania
#Nutrition
Nutrition for Crohn’s Disease
Nutrition
Nutrition for Crohn’s Disease
⏱ 7 min czytania
#Nutrition
Proper Nutrition and Micronutrient Supplementation in the Context of Female Fertility
Nutrition
Proper Nutrition and Micronutrient Supplementation in the Context of Female Fertility
⏱ 9 min czytania
#Nutrition
Cognitive Behavioral Therapy (CBT) for Eating Disorders
Nutrition
Cognitive Behavioral Therapy (CBT) for Eating Disorders
⏱ 9 min czytania
#Nutrition #Eating Disorders
Hidden Dysphagia – Recognition, Treatment, Diet
Nutrition
Hidden Dysphagia – Recognition, Treatment, Diet
⏱ 5 min czytania
#Nutrition #Magnesium
Heartburn – Causes, Symptoms, Treatment, Diet
Cardiovascular Diseases
Heartburn – Causes, Symptoms, Treatment, Diet
⏱ 9 min czytania
#Cardiovascular Diseases #Inflammation
Eating Disorders Are Not Limited to Anorexia – The Problem of Compulsive Eating
Eating Disorders
Eating Disorders Are Not Limited to Anorexia – The Problem of Compulsive Eating
⏱ 4 min czytania
#Eating Disorders #Nutrition
Sudden Diarrhea – Treatment Through Nutrition
Dehydration Risk
Sudden Diarrhea – Treatment Through Nutrition
⏱ 3 min czytania
#Dehydration Risk #Children's Nutrition
Glycemic Index – Foods with High and Low GI. Who Should Follow a Glycemic Diet?
Dietetics
Glycemic Index – Foods with High and Low GI. Who Should Follow a Glycemic Diet?
⏱ 6 min czytania 📚 Dietetics
#Nutrition #Glycemic Index
10 Rules for Prudent Use of Fats in the Diet
Macronutrients
10 Rules for Prudent Use of Fats in the Diet
⏱ 7 min czytania
#Macronutrients #Nutrition
Alternative Calcium Sources for a Dairy-Free Diet
Dairy-Free Diet
Alternative Calcium Sources for a Dairy-Free Diet
⏱ 3 min czytania
#Dairy-free Diet #Dairy Alternative

Share