How much almonds per day is too much?
Almond trials that lowered LDL used 1.3 to 2.6 oz (37 to 73 g) a day, and nut trials in heart disease had a median of 30 g, about 1 oz. No agency sets a limit, and one ounce (28 g) has 165 calories.
Where the limits are
| What sets the limit | Per ounce | Daily limit for adults | Ounces to reach it (rounded down) |
|---|---|---|---|
| Saturated fat | 1.1 g | about 20 g (10% of 2,000 calories) (Dietary Guidelines limit) | 18 |
| Calcium | 72 mg | 2,000 mg over age 50, 2,500 mg at 19 to 50 (Upper limit (NIH)) | 27 |
| Iron | 1.1 mg | 45 mg (Upper limit (NIH)) | 42 |
| Zinc | 0.8 mg | 40 mg (Upper limit (NIH)) | 49 |
| Calories | 165 | 2,000 (reference day, not a limit) | 12 |
One ounce = 1 oz (28 g). USDA FoodData Central, Nuts, almonds, whole, raw. Limits count everything you eat and drink that day, so other foods and supplements use up part of each one.
What 1 to 6 ounces a day add up to
| Amount | Calories | Saturated fat (% of limit) | Calcium (% of limit) |
|---|---|---|---|
| 1 ounce | 165 | 1.1 g (5%) | 72 mg (4%) |
| 2 ounces | 331 | 2.1 g (11%) | 144 mg (7%) |
| 3 ounces | 496 | 3.2 g (16%) | 216 mg (11%) |
| 4 ounces | 662 | 4.3 g (21%) | 288 mg (14%) |
| 6 ounces | 993 | 6.4 g (32%) | 431 mg (22%) |
How much saturated fat differs between USDA records
| USDA record | Per 100 g | Per ounce | Ounces to the limit |
|---|---|---|---|
| Nuts, almonds, whole, raw (FDC 2346393) | 3.8 g | 1.1 g | 18 |
| Nuts, almonds, blanched (FDC 170568) | 4 g | 1.1 g | 17 |
Each row is a separate USDA analysis of the same food. The spread comes from variety, growing conditions and sampling, and it changes the answer.
What eating it daily did in studies
- Level A Trials of nuts including almonds and pecans used 5 g to 85 g a day, with a median of 1.1 oz (30 g) a day for 6 to 12 weeks. Nutr Rev, 2025
- Level A A meta-analysis of 8 trials in 424 adults found more than 2.1 oz (60 g) of almonds a day lowered the oxidative stress marker MDA, with very high heterogeneity. Sci Rep, 2025
- Level B In a 5-period crossover feeding trial in 18 adults, 42 g a day of whole or chopped almonds shifted gut bacteria, but almond butter did not differ from the no-almond control. Nutrients, 2018
- Level B In a crossover RCT of 27 adults with high cholesterol, 2.6 oz (73 g) of almonds a day for a month lowered LDL by 9.4%, and half that dose by 4.4%. Circulation, 2002
- Level B In a controlled-feeding crossover RCT of 48 adults with raised LDL, 1.5 oz (about 43 g) of almonds a day instead of a muffin lowered LDL by 5.3 mg/dL over 6 weeks. J Am Heart Assoc, 2015
Only studies that give the amount eaten. Levels: A is a meta-analysis of trials, B a randomized trial, C an observational study. How we grade evidence.
Reasons to keep it moderate, and who should eat less
- Level C A systematic review of 36 studies put challenge-confirmed tree nut allergy below 2%, with cashew among the most common in the USA and almond among the most common in the UK. Curr Allergy Asthma Rep, 2015
- Level D A case report describes oxalate kidney damage in a woman eating five handfuls of almonds and six tablespoons of chia seeds daily. BMJ Case Rep, 2020
If you have kidney disease, take blood thinners or other medicines, or are pregnant, the right amount for you is a question for your clinician.
What this means for a normal day
No vitamin or mineral in almonds reaches an upper limit at amounts anyone eats. Calories set the practical ceiling: 2 oz is 330 calories.
The dose matters for the effects people want. In 27 adults with high cholesterol, 73 g a day for a month lowered LDL by 9.4%, and half that dose, about 37 g, by 4.4% (Level B). In 48 adults with raised LDL, 1.5 oz a day in place of a muffin lowered LDL by 5.3 mg/dL over 6 weeks (Level B).
One case report describes oxalate kidney damage in a woman eating five handfuls of almonds and six tablespoons of chia seeds a day (Level D). That is far above the trial amounts. If you have had kidney stones, ask your clinician about large daily servings.
Evidence behind this note
- Level A Trials of nuts including almonds and pecans used 5 g to 85 g a day, with a median of 1.1 oz (30 g) a day for 6 to 12 weeks. Nutr Rev, 2025
- Level B In a crossover RCT of 27 adults with high cholesterol, 2.6 oz (73 g) of almonds a day for a month lowered LDL by 9.4%, and half that dose by 4.4%. Circulation, 2002
- Level B In a controlled-feeding crossover RCT of 48 adults with raised LDL, 1.5 oz (about 43 g) of almonds a day instead of a muffin lowered LDL by 5.3 mg/dL over 6 weeks. J Am Heart Assoc, 2015
- Level D A case report describes oxalate kidney damage in a woman eating five handfuls of almonds and six tablespoons of chia seeds daily. BMJ Case Rep, 2020
Written from the data and studies on this page, reviewed by the Bioma editorial system. How we verify.
Keep exploring
Sources
- USDA FoodData Central, Foundation Foods (release 2025-12-18): Nuts, almonds, whole, raw, FDC ID 2346393 (accessed 2026-10-13)
- USDA FoodData Central, SR Legacy (2018): Nuts, almonds, blanched, FDC ID 170568 (accessed 2026-10-13)
- Dietary Guidelines for Americans, 2025-2030, https://cdn.realfood.gov/DGA.pdf (accessed 2026-10-13)
- NIH Office of Dietary Supplements, Health Professional Fact Sheet: Calcium, https://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/ (accessed 2026-10-13)
- NIH Office of Dietary Supplements, Health Professional Fact Sheet: Iron, https://ods.od.nih.gov/factsheets/Iron-HealthProfessional/ (accessed 2026-10-13)
- NIH Office of Dietary Supplements, Health Professional Fact Sheet: Zinc, https://ods.od.nih.gov/factsheets/Zinc-HealthProfessional/ (accessed 2026-10-13)
- Evidence cards: each study above links to its source. Card review dates are listed in our methodology.
Numbers checked 2026-10-13. Bioma Learn provides information, not medical advice.