Calories & macronutrients (serving size)
One medium avocado delivers roughly 240 calories, 3 grams of protein, 22 grams of total fat, 12 grams of carbohydrates, and 10 grams of dietary fiber. The nutrition panel flips conventional wisdom on its head: most of the weight comes from fat, not carbs, and that fat composition matters more than the calorie count. A half avocado (roughly 120 grams) hits about 120 calories—the practical serving size most Canadians actually eat. Track the daily value percentages, and you’ll see fibre pushing 40% DV per half avocado, while the macronutrients create a satiety effect that outlasts simple carbs.
| Nutrient | Per Medium Avocado (200g) | Per Half Avocado (100g) | Daily Value % |
|---|---|---|---|
| Calories | 240 | 120 | 12% |
| Total Fat | 22g | 11g | 28% |
| Protein | 3g | 1.5g | 6% |
| Carbohydrates | 12g | 6g | 4% |
| Dietary Fibre | 10g | 5g | 40% |
| Sugar Content | 0.7g | 0.35g | Minimal |
How many calories are in one avocado?
A medium avocado contains approximately 240 calories; a half avocado runs 120 calories. Serving size matters because energy density shifts your meal composition entirely.
Don’t obsess over the calorie number alone. The real story sits inside the macronutrient breakdown—you’re getting a fat-dominant food with surprisingly low sugar content and a fibre load that keeps digestion steady. Most people underestimate how much the dietary fibre reduces practical carbohydrate impact.
Healthy fats: monounsaturated fat + oleic acid
Here’s where avocado separates from the noise. Roughly 15 grams of the 22 grams total fat is monounsaturated fat, the oleic-acid dominant type that shows up prominently in the fatty acid profile. Oleic acid gets attention because it appears in olive oil and certain nuts—foods nobody hesitates to call healthy. Avocado’s lipid profile tilts heavily toward monounsaturated fat, which supports a healthy cholesterol lowering (diet support framing) approach without prescription drama. Saturated fat clocks in around 3 grams per medium fruit, and polyunsaturated fat rounds out the rest.
| Fat Type | Per Medium Avocado | Notes |
|---|---|---|
| Monounsaturated Fat | ~15g | Primarily oleic acid; supports heart health framing |
| Oleic Acid (specific) | ~10g | Major component of the fatty acid profile |
| Saturated Fat | ~3g | Minimal; context matters more than exclusion |
| Polyunsaturated Fat | ~3g | Includes omega-6 linoleic acid |
The mineral content won’t matter much if your fat profile is garbage. Avocado’s composition means you’re eating a food engineered (naturally) to support vascular function and satiety without triggering the metabolic drama of refined carbs. Keto followers grab avocado for this exact reason—the energy density stays high, but the blood-sugar response stays flat.
Carbs, sugar content & glycemic index
Twelve grams of carbohydrates per medium avocado sounds light until you factor in the dietary fibre: 10 grams of that carb load is insoluble fibre, which your body doesn’t metabolize like regular sugar. Net carbs drop to roughly 2 grams per medium avocado—essentially a rounding error for keto macro fit purposes. The sugar content sits at less than 1 gram, which means blood-sugar response stays controlled regardless of your metabolic state.
| Carbohydrate Component | Amount (per medium) | Glycemic Load Impact |
|---|---|---|
| Total Carbohydrates | 12g | Low due to high fibre content |
| Dietary Fibre | 10g | Minimal glycemic load |
| Net Carbs | ~2g | Effectively negligible |
| Sugar Content | <1g | Extremely low; minimal blood-sugar spike |
What is the glycemic index of avocado?
Avocado’s glycemic index sits low (estimated 15–30, depending on ripeness and form), meaning minimal blood-sugar response. The practical glycemic load stays near zero because you’re consuming mostly fibre, not simple carbs.
The digestion mechanics work like this: that 10 grams of dietary fibre slows carbohydrate absorption, keeps your gut bacteria happy (mostly through fermentation), and stabilizes energy release over hours rather than minutes. Most nutrition pages skip this detail, but it’s the reason avocado fits so cleanly into weight loss plans and keto protocols alike. Sugar content isn’t the issue here—fibre is the solution.
Micronutrients, vitamins & antioxidants
Avocado’s micro-nutrient density often gets overshadowed by the fat discussion, but the mineral and vitamin content deserves its own section. One medium fruit supplies roughly 485 milligrams of potassium (11% daily value)—more than a medium banana, by the way. Calcium clocks in around 12 milligrams (minimal, honestly), and iron contributes about 0.6 milligrams. The real wins sit in the fat-soluble vitamins: vitamin E (an antioxidant), vitamin K (required for clotting and bone metabolism), and vitamin C (roughly 10 milligrams). Avocado also contains polyphenol class compounds—broad antioxidant activity that protects cells without the fanfare of marketing speak.
| Micronutrient | Per Medium Avocado | Daily Value % | Function Notes |
|---|---|---|---|
| Potassium | 485mg | 11% | Electrolyte potassium; cardiovascular support |
| Vitamin E | ~2.1mg | 14% | Antioxidant; protects cell membranes |
| Vitamin K | ~21µg | 26% | Coagulation and bone mineralisation |
| Vitamin C | ~10mg | 17% | Immune support; collagen synthesis |
| Calcium | 12mg | 1% | Minimal contribution; not a source |
| Iron | 0.6mg | 3% | Modest; absorption aided by vitamin C |
What vitamins and minerals are in avocado?
Avocado supplies potassium, vitamin K, vitamin E, and vitamin C among others—with potassium and vitamin K leading the micronutrient charge. The electrolyte potassium content alone makes avocado useful for anyone tracking mineral balance or managing blood pressure through diet.
The vitamins work together: vitamin E fights oxidative stress, vitamin K handles clotting and bone work, and vitamin C assists iron absorption while building connective tissue. This isn’t flashy nutrient synergy talk—it’s basic biochemistry. Avocado sits at the centre of a reasonable nutrient profile, and the antioxidant activity from polyphenols and vitamin E means you’re getting cellular protection alongside energy density.
Health benefits: digestion, energy, weight loss, heart health
Digestion improves when you eat a food that provides both soluble and insoluble dietary fibre. That 10 grams per medium avocado feeds your gut microbiota, promotes regularity without artificial assistance, and smooths energy release across hours. You feel full longer. Your blood glucose stays stable. The Harvard T.H. Chan School of Public Health confirms that the evidence supports a link between fibre intake and digestive health—not exactly a controversial statement, but worth noting because most people still undershoot their fibre targets.
Energy stays elevated without crashes. The macronutrient mix—fat plus fibre plus minimal sugar—prevents the insulin spike that causes the 3 p.m. slump. You get energy density without the energy collapse. Weight loss works partly through this satiety effect: your body signals fullness faster, so you eat fewer total calories without willpower theater. The mono- and polyunsaturated fats also support your lipid profile, which connects directly to heart health and cholesterol lowering (diet support). The USDA and HHS note in their Dietary Guidelines for Americans that overall dietary patterns matter for health, particularly when limiting added sugars and emphasising nutrient-dense foods—avocado ticks both boxes.
Practical heart health isn’t about exotic compounds; it’s about monounsaturated fat content, potassium intake, and fibre consumption. Avocado delivers all three. Your blood pressure gets a gentle assist from the electrolyte potassium. Your arteries benefit from the absence of trans fats and the presence of fat-soluble antioxidants like vitamin E. Nothing revolutionary, but nothing marginal either.
Diet fit: vegan, gluten free, keto friendly
Avocado slots into dietary frameworks with zero friction. It’s naturally vegan (no animal products). It’s naturally gluten free (no grain proteins). The keto macro fit works because net carbs hover near zero while calories and fat stay high—exactly what ketogenic approaches demand. A half avocado contributes roughly 120 calories, 2 net carbs, and 11 grams of fat to your daily macros, making it a no-brainer for anyone running a strict keto macro fit protocol.
| Diet Type | Avocado Fit | Notes |
|---|---|---|
| Vegan | ✓ Full compatibility | No animal products; complete plant fat source |
| Gluten Free | ✓ Full compatibility | No gluten; no cross-contamination risk |
| Keto Friendly | ✓ Excellent fit | ~2g net carbs per half avocado; high fat content |
| Low-Carb | ✓ Ideal | Nutrient-dense; minimal carbohydrate impact |
| Paleo | ✓ Compatible | Whole food; no processing required |
For weight loss, the satiating properties matter more than ideology. Avocado works on any macro-aligned plan because the fibre, protein, and fat combination triggers fullness signals faster than refined carbohydrates do. The daily value percentages favour micronutrient completion without excess calories, which means you hit nutrient targets while maintaining a caloric deficit (if that’s your goal).
Daily value and serving size cheatsheet (Canada)
One medium avocado weighs roughly 200 grams and delivers the numbers you see in the nutrition panel above. A small avocado runs 150–170 grams, while a large one can push 250+ grams. Canadian grocery stores typically sell them medium-sized, so assume that benchmark unless the label says otherwise.
Serving size confusion kills dietary adherence. Most nutrition data you’ll find uses half an avocado as the baseline (100 grams), which makes the daily value percentages easier to mental-math. Diced avocado packs different per cup depending on how finely you cut it—roughly 1.5 medium avocados fills a cup. If you’re tracking macros for keto or weight loss, weigh the avocado flesh itself, not the whole fruit with skin and pit. A food scale costs 20 dollars and eliminates guessing.
The daily value percentages assume a 2,000-calorie reference diet, which applies to most Canadian adults (with obvious exceptions for athletes and children). Potassium hits 11% daily value per medium fruit. Fibre sits at 40% daily value. Vitamin K supplies 26%. These aren’t overwhelming concentrations, but they add up across your daily food intake. Stack an avocado with leafy greens (more vitamin K), beans (more fibre), and salmon (more potassium), and you’re covering micronutrient bases without supplementation theatre. The net carbs calculation remains your single most useful tool: 12 grams total carbs minus 10 grams fibre equals 2 grams net carbs. That’s the number that matters for blood-sugar response and keto tracking.