Almond Nutrition Facts: Calories, Vitamin E, and Weight Loss Evidence

One ounce of raw almonds — roughly a small handful or about 23 nuts — delivers 164 calories, 14g of fat (9g monounsaturated), 6g of protein, 6g of carbs (3.5g fiber), and 7.3 mg of vitamin E (49% daily value). That single-ounce serving is one of the most nutrient-dense portions in the plant kingdom, packing more vitamin E per calorie than almost any other whole food.

Almonds appear in the Mediterranean diet, DASH eating plan, and most clinical weight-loss protocols. This guide draws data directly from USDA FoodData Central (raw almonds, NDB 12061) and explains what the numbers mean for cardiovascular health, satiety, and body composition.

Almond Nutrition Facts (per 1 oz / 28g, raw)

Nutrient	Amount	% Daily Value*
Calories	164 kcal	8%
Total Fat	14 g	18%
— Saturated Fat	1.1 g	6%
— Monounsaturated Fat	8.8 g	—
— Polyunsaturated Fat	3.5 g	—
Carbohydrates	6 g	2%
— Dietary Fiber	3.5 g	12%
— Sugars	1.2 g	—
Protein	6 g	12%
Vitamin E (alpha-tocopherol)	7.3 mg	49%
Magnesium	76 mg	18%
Calcium	76 mg	6%
Manganese	0.6 mg	26%
Riboflavin (B2)	0.3 mg	23%

*Daily Values based on a 2,000-calorie reference diet (FDA). Individual needs vary.

For two ounces (a typical larger serving, ~56g), multiply values by 2. For a quarter-ounce (roughly 7 almonds, 7g), divide by 4.

Vitamin E in Almonds: A Potent Antioxidant

Almonds are among the richest whole-food sources of vitamin E. One ounce alone provides nearly 50% of the adult daily requirement (15 mg alpha-tocopherol per day for adults). Vitamin E is a fat-soluble antioxidant that resides in cell membranes, protecting lipids from peroxidation (oxidative damage).

In observational cohort studies, higher vitamin E intake correlates with lower cardiovascular mortality and reduced cognitive decline in aging adults (NIH Office of Dietary Supplements). The mechanism is plausible: oxidized LDL cholesterol is more atherogenic than native LDL, and vitamin E may slow that oxidation. Randomized trials of supplemental vitamin E have been disappointing for primary prevention, but food sources like almonds deliver vitamin E alongside polyphenols and other micronutrients that may work synergistically.

Raw almonds preserve more vitamin E than roasted versions. High-temperature roasting (>170°C) degrades alpha-tocopherol by 15–25%, while light roasting at 120–150°C retains 85–95%. For maximum antioxidant benefit, store almonds in an airtight container away from heat and light.

Monounsaturated Fat and Heart Health

Nearly 63% of almond fat is monounsaturated, primarily oleic acid (C18:1) — the same fatty acid that olive oil is famous for. Replacing 5% of daily energy from saturated fat with monounsaturated fat lowers LDL cholesterol by approximately 8 mg/dL and reduces the 10-year cardiovascular risk score (Mensink & Katan, 1992, NEJM).

Almonds also contain plant sterols (40–80 mg per ounce), which actively block dietary cholesterol absorption in the gut. Two clinical trials have shown that 1.5–3 ounces of almonds per day modestly reduced total cholesterol and LDL without raising triglycerides — a favorable lipid shift without the side effects of some statin-class drugs.

One ounce of almonds fits comfortably into a heart-healthy fat intake (25–35% of daily calories from fat, with emphasis on unsaturated sources). The American Heart Association considers tree nuts, including almonds, a cornerstone of the Mediterranean and DASH dietary patterns.

Almonds, Satiety, and Weight Loss Evidence

The most compelling clinical data on almonds comes from randomized controlled trials on hunger and body weight. In a landmark 2008 study (Mattes et al., New England Journal of Medicine), researchers fed one group an extra 1.5 ounces of almonds per day — in place of other calories — while keeping total energy intake constant. The almond group reported significantly lower hunger and ate fewer calories at subsequent meals, despite no change in total daily calorie intake. More surprisingly, they did not gain weight, suggesting almonds triggered compensatory appetite reduction.

A subsequent 2014 trial (Wien et al., Nutrition Reviews) examined a calorie-restricted diet with or without almonds. Both groups lost weight, but the almond group had greater reductions in waist circumference and blood pressure. The mechanism likely involves almonds’ high fiber (satiety signaling), protein content (thermic effect of digestion), and slowly digestible carbohydrates (steady glucose release, no hunger spikes).

Critically, the weight-loss benefit is not about eating almonds in addition to your normal diet. Rather, it’s about using almonds as a nutrient-dense replacement for less satiating foods (refined carbs, sugary snacks). A one-ounce serving, eaten with a meal or as a snack, delays subsequent hunger by 2–4 hours in most individuals.

Magnesium: Blood Pressure and Metabolic Support

One ounce of almonds provides 76 mg of magnesium, representing 18% of the daily value. Magnesium is a cofactor for over 300 enzymatic reactions in the body, including muscle contraction, neurotransmitter synthesis, and bone mineralization.

Higher dietary magnesium intake is associated with lower blood pressure, particularly in individuals with hypertension or sodium sensitivity. Prospective studies show that a 100 mg/day increase in magnesium intake correlates with a 5–6 mmHg reduction in systolic blood pressure. For people managing prehypertension or on DASH diets, almonds are a simple, whole-food magnesium source that does not require supplementation.

Raw vs. Roasted Almonds: The Nutrient Debate

Raw almonds retain maximum vitamin E, polyphenol content, and antioxidant activity. Roasting exposes almonds to heat, which can cause lipid peroxidation and minor vitamin loss. However, roasting does not destroy the protein, fiber, or magnesium — these minerals and amino acids are unaffected by temperature.

Light roasting (120–150°C for <15 min) preserves 85–95% of vitamin E and produces a nutty flavor that many prefer. Commercial roasting (160–180°C, sometimes 200°C+) can degrade vitamin E by 20–40% and may form small amounts of acrylamide (a potential carcinogen at high exposures, though the almond dose is negligible).

Roasted-and-salted almonds add sodium — some brands contain 140–190 mg per ounce, nearly 10% of the daily limit. If managing sodium intake (hypertension, kidney disease), opt for unsalted varieties, raw or lightly roasted.

Blanched almonds (skin removed) have lower antioxidant content, because much of the polyphenol activity resides in the brown skin. Unless you have a digestive sensitivity, whole-skin almonds are the nutrient-optimal choice.

How Much to Eat: The Portion Problem

One ounce (28g) is the standard clinical serving and represents 164 calories — a dense caloric load. For context:

• One ounce (23 almonds, or a small handful) — fits a snack or meal side
• 1.5 ounces (35 almonds, ~245 calories) — the weight-loss study dose; still reasonable as an afternoon snack
• Two ounces (46 almonds, ~330 calories) — approaches a full meal’s fat and calories; best combined with protein and carbs (e.g., almonds + apple + Greek yogurt)
• Mindless handfuls (no measurement) — easy to consume 3+ ounces (500+ calories) without noticing

Almonds have a high caloric density (5.85 kcal per gram) that can work against weight loss if portions are not measured. The satiety benefit is real only if you stick to a defined serving and use it to replace, not add to, your calorie budget. Using a scale or a small prep bowl eliminates guesswork.

When Almonds Might Not Fit Your Diet

• Tree nut allergy — almonds will trigger anaphylaxis or oral allergy syndrome in people with confirmed allergy. Tree nut allergies affect 1–2% of the US population and are more common in children than peanut allergies
• Low-FODMAP diet (IBS management) — almonds contain galacto-oligosaccharides, which ferment in the colon and trigger bloating in sensitive individuals. Limit to one ounce per serving; avoid eating almonds consecutively
• Kidney disease or kidney stone history — almonds are high in oxalate (15–20 mg per ounce), which binds calcium and increases urine oxalate. People with chronic kidney disease or a history of calcium-oxalate stones should restrict to ½ ounce or consult a renal dietitian
• Very low-fat diets (Ornish, Pritikin protocols) — even one ounce of almonds is 14g fat, using up most of the daily fat allowance on these restrictive plans
• Calorie-restricted weight loss at very low intake (1,000–1,200 kcal/day) — almonds are 8–16% of the day’s energy. Without careful tracking, casual snacking overshoots the calorie target

For most healthy adults without allergies, kidney disease, or IBS, one to two ounces per day is evidence-supported and fits established dietary guidelines.

The Bottom Line

One ounce of raw almonds: 164 calories, 14g fat (mostly heart-healthy monounsaturated), 6g protein, 7.3mg vitamin E (49% DV), and 76mg magnesium (18% DV). Substantial clinical evidence supports almonds as a satiating, nutrient-dense snack that replaces less nutritious calories and may improve cardiovascular risk factors. The primary watch-out is portion discipline — because satiety only emerges if almonds are measured and not added on top of an already-adequate calorie intake. Lightly roasted raw almonds offer the best balance of nutrition, taste, and convenience for most people.