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High calorie foods pack a lot of energy into a small serving. The most useful ones also bring protein, fiber, healthy fats or vitamins: nuts and nut butters, olive oil, avocado, granola, dried fruit, cheese, whole milk and whole-milk yogurt, salmon, beans and whole grains. These healthy high calorie foods matter for people who need to gain weight or simply struggle to eat enough, for example when appetite is low during illness or on a GLP-1 medicine. Below is a USDA chart, why fat raises calorie density, practical ways to add calories and when to talk to a clinician.
Peptide Labs does not sell foods, and this article is general nutrition information, not medical advice. If you have lost weight without trying, start with your clinician rather than a food list.
Key Takeaways
- Fat supplies 9 calories per gram versus 4 for protein and carbohydrate, so fatty foods are the most calorie dense foods.
- Nuts, nut butters, oils, avocado and granola top the USDA chart per serving.
- Pairing calorie dense foods with protein foods supports overall nutrition, not just calories.
- Unexplained loss of 10 pounds or 5% of body weight within 6 to 12 months is a reason to see a provider.
- Low appetite on GLP-1 medicines calls for small, regular, nutrient-dense meals planned with your care team.
High calorie foods: USDA chart
Values come from the USDA FoodData Central SR Legacy database, converted from the per-100-gram figure to a common serving and rounded. Calories depend heavily on serving size, so the chart also shows protein, which helps you judge whether a food adds more than energy.
| Food (USDA description, shortened) | Serving | Calories | Protein, grams |
|---|---|---|---|
| Avocado, raw | 1 whole (201 g) | 322 | 4.0 |
| Granola, homemade | 1/2 cup (61 g) | 298 | 8.3 |
| Chickpeas, boiled | 1 cup (164 g) | 269 | 14.5 |
| Coconut milk, canned | 1/2 cup (113 g) | 223 | 2.3 |
| Quinoa, cooked | 1 cup (185 g) | 222 | 8.1 |
| White rice, enriched, cooked | 1 cup (158 g) | 205 | 4.3 |
| Macadamia nuts | 1 oz (28 g) | 204 | 2.2 |
| Pasta, enriched, cooked | 1 cup (124 g) | 196 | 7.2 |
| Trail mix | 1.5 oz (42 g) | 194 | 5.8 |
| Peanut butter, smooth | 2 tbsp (32 g) | 191 | 7.1 |
| Walnuts | 1 oz (28 g) | 185 | 4.3 |
| Salmon, Atlantic, farmed, cooked | 3 oz (85 g) | 175 | 18.8 |
| Dark chocolate, 70-85% cacao | 1 oz (28 g) | 170 | 2.2 |
| Greek yogurt, plain, whole milk | 6 oz (170 g) | 165 | 15.3 |
| Sunflower seed kernels, roasted | 1 oz (28 g) | 165 | 5.5 |
| Almonds | 1 oz (28 g) | 164 | 6.0 |
| Baked potato with skin | 1 medium (173 g) | 161 | 4.3 |
| Oats, dry | 1/2 cup (41 g) | 153 | 5.3 |
| Whole milk | 1 cup (244 g) | 149 | 7.7 |
| Hummus | 1/4 cup (62 g) | 146 | 4.8 |
| Medjool dates | 2 dates (48 g) | 133 | 0.9 |
| Raisins, seedless | 1 small box (43 g) | 129 | 1.4 |
| Olive oil | 1 tbsp (13.5 g) | 119 | 0 |
| Cheddar cheese | 1 oz (28 g) | 114 | 6.5 |
| Butter | 1 tbsp (14 g) | 102 | 0.1 |
| Egg, hard-boiled | 1 large (50 g) | 78 | 6.3 |
What makes calorie dense foods so dense?
FDA labeling rules allow calories to be calculated with general factors of 4 calories per gram of protein, 4 per gram of carbohydrate and 9 per gram of fat. Foods that are mostly fat and low in water therefore carry the most calories per bite. Per 100 grams, USDA lists olive oil at 884 calories, macadamia nuts at 718 and peanut butter at 598, compared with 89 for a banana and 61 for whole milk. Water and fiber do the opposite: they add volume without many calories, which is why the high fiber foods that help people feel full can make it harder to eat enough when appetite is already small.
Who might need foods to gain weight?
The CDC classifies an adult body mass index (BMI) under 18.5 as underweight. Other people are not underweight but are losing weight they cannot afford to lose, or they find it hard to eat enough during illness, recovery, older age or a period of low appetite. MedlinePlus defines unintentional weight loss as losing 10 pounds (4.5 kilograms) or 5% of your normal body weight over 6 to 12 months or less without knowing the reason, and advises contacting your provider if that happens. The cause matters more than the menu, so a clinician should look first.
Low appetite on GLP-1 medicines
GLP-1 medicines reduce appetite on purpose, and some people end up eating less than they need, especially protein. A 2025 joint advisory from four US obesity and nutrition societies recommends regular small meals instead of large meals or long gaps, built on nutrient-dense, minimally processed foods such as legumes, lean proteins, nuts and seeds. Our GLP-1 diet guide covers the advisory, and our GLP-1 results guide explains how weight changes over time. Anyone losing weight faster than expected should tell their prescriber.
Healthy high calorie foods vs empty calories
Calories from soda, candy and pastries add energy with little else. The Dietary Guidelines for Americans 2025-2030 say no amount of added sugars is recommended as part of a healthy diet, suggest no more than 10 grams of added sugars in a single meal, and say saturated fat should not exceed 10% of daily calories. That points toward foods that combine calories with nutrients: nuts, seeds, nut butters, olive oil, avocado, fish, eggs, dairy, beans and whole grains. Butter, coconut milk and cheese are calorie dense too, but they carry more saturated fat, so they work better as additions than as the base.
Simple ways to add calories to meals
- Drizzle olive oil over vegetables, grains, beans or soup.
- Spread nut butter on toast, apple slices or a banana, or stir it into oatmeal.
- Cook oats in whole milk instead of water and top them with nuts and dried fruit.
- Add avocado to eggs, sandwiches, salads and grain bowls.
- Choose whole-milk Greek yogurt and add granola or seeds.
- Grate cheese over pasta, potatoes or beans.
- Blend a smoothie with milk, yogurt, nut butter and fruit.
- Eat smaller meals more often if large plates feel overwhelming.
Protein deserves a place in each of these meals, because gaining weight is not only about calories. Our chart of high protein foods lists options such as fish, eggs, dairy, tofu and lentils.
High calorie snacks
Snacks between meals are an easy way to add energy without huge portions. Practical high calorie snacks from the chart include a handful of nuts or trail mix, hummus with whole-grain crackers, cheese with fruit, a couple of dates with peanut butter, a small bowl of granola with yogurt, or a square or two of dark chocolate. Keep portable options with you if you tend to skip meals.
What about shakes?
Clinicians sometimes recommend medical nutrition drinks for people who cannot eat enough food. These are different from diet shakes, which are designed to limit calories; our guide to meal replacement shakes explains the label differences. Use them on a clinician’s or dietitian’s advice rather than as a default.
Frequently Asked Questions
What foods are highest in calories?
Per serving in USDA data, avocado, granola, chickpeas, coconut milk, nuts, nut butters and trail mix are near the top. Per gram, oils and nuts are the most calorie dense.
What are healthy high calorie foods?
Nuts, seeds, nut butters, olive oil, avocado, salmon, eggs, whole-milk yogurt, beans and whole grains add calories along with protein, fiber or healthy fats.
What are good foods to gain weight?
Calorie dense foods paired with protein, such as oats with milk and nuts, or rice with salmon and avocado. A clinician should check unexplained weight loss first.
What are easy high calorie snacks?
Nuts, trail mix, cheese, hummus, dates with peanut butter, granola with yogurt and dark chocolate.
Why are fatty foods so high in calories?
Fat provides 9 calories per gram, more than twice the 4 calories per gram of protein or carbohydrate.
What if I have no appetite on a GLP-1 medicine?
Small, regular, nutrient-dense meals are the usual advice. Tell your prescriber if you are losing weight faster than expected or struggling to eat.
Questions about a label? Contact us or read our Buyer’s Guide. Follow the label and ask a healthcare provider or registered dietitian before making big changes to how you eat, especially if you take medicines, are pregnant or have a health condition. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Last reviewed October 2026.
Related guides: GLP-1 Diet: What Experts Recommend While on GLP-1 Medicines, High Protein Foods: USDA Values for Meat, Dairy and Plant Sources, Meal Replacement Shakes: Do They Work, and How to Read the Label.