Layer dip: beans and avocado are studied, the dip is not

By a meta-analysis of 38 randomized trials with 2095 people, whole pulses eaten at a median 130 g a day for 6 weeks lowered LDL cholesterol by 5.4 mg/dL (95% CI 3.1 to 7.3; metric: 0.14 mmol/L, 0.08 to 0.19). That is the firmest number behind layer dip, and it comes from one of its layers. The trials fed whole pulses. Refried beans carry added fat and salt, and a serving of dip holds far less than half a cup. We found no study of layer dip as a dish. A single US recipe-based entry gives 146 calories, 11.3 g fat with 5.1 g saturated, 538 mg sodium, 5.4 g protein and 2.1 g fiber per 3.5 oz (100 g), and real layers vary widely. A 15 g tablespoon comes to about 22 calories and 81 mg sodium, and a 70 g single-serve container to about 102 calories and 377 mg sodium, values recomputed from 100 g that leave out the chips.

As people eat it, per 3.5 oz (100 g)

How much is actually in it

• US survey data put layer dip at about 146 calories, 11.3 g fat (5.1 g saturated) and 538 mg sodium per 3.5 oz (100 g), with 5.4 g protein and 2.1 g fiber. — US recipe-based food code, FNDDS (n = 1 food code) Evidence E source
  Per 100 g: energy 146 calories, fat 11.33 g, saturated fat 5.103 g, carbohydrate 6.67 g, sugars 1.71 g, fiber 2.1 g, protein 5.41 g, sodium 538 mg, calcium 142 mg, cholesterol 23 mg

What a real portion looks like

• A tablespoon of layer dip (15 g) gives about 22 calories and 81 mg sodium, and a single-serve container (70 g) about 102 calories and 377 mg sodium. — US household measures, FNDDS (n = 1 food code) Evidence E source
  1 tbsp 15 g: 21.9 calories, 1.7 g fat, 80.7 mg sodium; container 70 g: 102.2 calories, 7.9 g fat, 376.6 mg sodium; quantity not specified 60 g: 87.6 calories, 322.8 mg sodium

What your body absorbs

• In two crossover RCTs of 12 adults each, adding avocado (23 g fat) to a meal raised beta-carotene absorption 2.4-fold from tomato sauce and 6.6-fold from raw carrots. — two sets of 12 healthy men and women, randomized 2-way crossover, single meals with or without fresh Hass avocado (n = 24) Evidence B source
  Beta-carotene absorption x2.4 (tomato sauce) and x6.6 (carrots), alpha-carotene x4.8; conversion to vitamin A x4.6 and x12.6

What it does to your health

• By a meta-analysis of 38 trials with 2095 people, eating whole pulses (median 130 g a day for 6 weeks) lowered LDL cholesterol by about 5.4 mg/dL (0.14 mmol/L). — 38 randomized trials, 52 comparisons, n=2095, median 6 weeks, median dose 130 g/d (0.5-0.67 cup/d) (n = 2095) Evidence A source
  LDL-C -5.4 mg/dL (95% CI -7.3 to -3.1; metric: -0.14 mmol/L, -0.19 to -0.08); non-HDL-C -8.5 mg/dL (-0.22 mmol/L); beans up to 1 cup/d -9.7 mg/dL (-0.25 mmol/L) per 0.5 cup
• By a meta-analysis of 10 small studies with 229 people, avocado-enriched diets lowered LDL cholesterol by about 16.5 mg/dL. — 10 randomized clinical trials, n=229 (n = 229) Evidence A source
  TC -18.80 mg/dL (95% CI -24.56 to -13.05); LDL-C -16.50 mg/dL (-22.91 to -10.10); TG -27.20 mg/dL; HDL unchanged
• In an RCT of 786 adults with abdominal obesity, one avocado a day for 26 weeks lowered LDL particle concentration by about 49 nmol/L. — 786 free-living adults with abdominal obesity, 74% female, mean age 51, Habitual Diet and Avocado Trial (n = 786) Evidence B source
  Total LDL particles -49.1 nmol/L (95% CI -83.6 to -14.5) vs habitual diet; no change in apoB or HDL particles

Safety, limits and interactions

• Lab and animal research describes the lectins of common beans as anti-nutritional factors that can cause intestinal disorders. — review of Phaseolus vulgaris lectin studies Evidence D source
  Lectins described as anti-nutrients, hemagglutinins and possible allergens

What people believe that the data does not support

• Europe refused the claim that an avocado-soy extract builds joint cartilage and keeps joints flexible. — — Evidence E source
  Claim non-authorized

Who this works differently for

• In a 3-week crossover feeding trial in adults with high triglycerides, swapping solid fats and added sugars for one avocado a day cut triglycerides by about 17%. — 42 adults with elevated triglycerides (135-499 mg/dL), two 3-week controlled feeding periods, avocado delivered in foods including salsa and dressing (n = 42) Evidence B source
  TG -17.4% (95% CI -25.0 to -8.99); non-HDL-C -4.65% (-9.01 to -0.08); no change in glucose, insulin or blood pressure
• In a Finnish birth cohort of 2272 mothers, eating any avocado in pregnancy was linked to 43.6% lower odds of food allergy in the child at 12 months. — 2272 mother-child pairs, Kuopio Birth Cohort, avocado intake by FFQ in trimesters 1 and 3 (n = 2272) Evidence C source
  43.6% lower odds of parent-reported infant food allergy at 12 months; no association with rhinitis, wheezing or eczema

What is still unknown

• A scoping review of 45 avocado studies found trials used 60-300 g a day while people in observational studies ate 0-10 g, so effects at dip-sized amounts are unclear. — 45 unique studies (28 interventions, 17 observational) on avocado intake and health (n = 45 studies) Evidence C source
  Intervention doses 60-300 g/d vs habitual intake 0-10 g/d

The bottom line

Avocado has its own trials, and the doses are large. By a meta-analysis of 10 small trials with 229 people, avocado-enriched diets lowered LDL by 16.5 mg/dL (95% CI 10.1 to 22.9), with high heterogeneity, and a 2025 meta-analysis outside our corpus found no significant change in total cholesterol or triglycerides. In a randomized trial of 786 adults with abdominal obesity, one avocado a day for 26 weeks lowered LDL particle concentration by 49.1 nmol/L (95% CI 14.5 to 83.6) against their usual diet, an exploratory outcome with no change in apoB. A scoping review of 45 avocado studies found that trials used 60 to 300 g a day while people in observational studies ate 0 to 10 g, so the effect at dip-sized amounts is unknown. In a 3-week crossover feeding trial in 42 adults with high triglycerides, one avocado a day in place of solid fats and added sugars cut triglycerides by 17.4% (95% CI 9.0 to 25.0%), with no change in glucose, insulin or blood pressure. Fat in the meal helps carotenoids in. In two crossover trials of 12 adults each, adding avocado to a single meal raised beta-carotene absorption 2.4-fold from a high beta-carotene tomato sauce and 6.6-fold from raw carrots, and the salsa in a dip carries far less carotene. Europe refused a joint claim for an avocado-soy extract, a concentrated product that says nothing about avocado in food. For caution, a review of lab work on common beans describes their lectins as anti-nutritional factors that can cause intestinal disorders, a concern for raw or undercooked beans, and refried beans are cooked. On pregnancy, a Finnish cohort of 2272 mother and child pairs linked eating any avocado in pregnancy with 43.6% lower odds of parent-reported food allergy in the child at 12 months. This is an observational link with self-reported allergy, and overall diet quality may explain it. We have no card on allergy to the dip itself or on medicines.

Sources

1. lydp-r2-01 · reference dataset
   FNDDS 2707401 Layer dip (code 41205055): Energy 146 kcal/100 g · Total lipid 11.33 g · Fatty acids, total saturated 5.103 g · Carbohydrate 6.67 g · Total Sugars 1.71 g · Fiber 2.1 g · Protein 5.41 g · Sodium 538 mg · Calcium 142 mg · Cholesterol 23 mg
   USDA FNDDS 2021-2023 · checked 2026-10-02
2. lydp-r2-02 · reference dataset
   FNDDS 2707401 Layer dip portions: 1 tablespoon 15 g · 1 individual container 70 g · Quantity not specified 60 g; 1 tablespoon: Energy 21.9 kcal, Sodium 80.7 mg, Total lipid 1.7 g
   USDA FNDDS 2021-2023 · checked 2026-10-02
3. lydp-r2-03 · randomized crossover trial
   Consumption of lipid-rich avocado enhanced the absorption of β-carotene from study 1 by 2.4-fold (P < 0.0001). In study 2, the absorption of β-carotene and α-carotene increased by 6.6- and 4.8-fold, respectively (P < 0.0001 for both).
   J Nutr, 2014 · checked 2026-10-02
4. lydp-r2-04 · meta-analysis
   Thirty-eight trials (52 trial comparisons, n=2095) with a median of 6 weeks and dose of 130 g/d (0.5-0.67 cup/d) showed that whole dietary pulses decreased low-density lipoprotein-cholesterol (mean difference, -0.14 mmol/L [95% CI, -0.19 to -0.08])
   J Am Heart Assoc, 2026 · checked 2026-10-02
5. lydp-r2-05 · meta-analysis
   Ten unique studies (n = 229) were included. Avocado consumption significantly reduced TC, LDL-C, and TG by -18.80 mg/dL (95% confidence interval [CI], -24.56 to -13.05; I(2), 46.9%), -16.50 mg/dL (95% CI, -22.91 to -10.10; I(2), 72.5%), -27.20 mg/dL (95% CI, -44.41 to -9.99; I(2), 91.1%) respectively.
   J Clin Lipidol, 2016 · checked 2026-10-02
6. lydp-r2-06 · randomized trial
   The Avocado-supplemented Diet Group had a reduction in total low-density lipoprotein (LDL) particle concentration (mean difference: -49.1 nmol/L; 95% CI: -83.6, -14.5; P = 0.005) compared to the Habitual Diet Group.
   J Clin Lipidol, 2026 · checked 2026-10-02
7. lydp-r2-08 · systematic review
   Studies have shown that lectins are anti-nutritional factors that can cause intestinal disorders. Owing to their ability to act as toxic allergens and hemagglutinins, the Phaseolus vulgaris lectins are of grave concern for human health and safety.
   Crit Rev Food Sci Nutr, 2018 · checked 2026-10-02
8. lydp-r2-10 · regulatory register entry
   POL-HC-6664 Avocado-soy extract Natural flexibility for the joints. Accelerates the formation of new cartilage by increasing the formation of cartilage growth factors. Facilitates exercise. Activates the building of joint cartilage. Natural flexibility remains. Accelerates the formation of collagen in joint membrane cells (synoviocytes). Non-authorised
   EU Register on nutrition and health claims, claim POL-HC-6664, snapshot 2026-09-21 · checked 2026-10-02
9. lydp-r2-07 · randomized crossover trial
   An intention-to-treat analysis showed significantly larger percentage changes, 95% confidence intervals (CIs), from baseline after the avocado condition, compared with after the control condition, for non-HDL cholesterol (-4.65%; 95% CI: -9.01%, -0.08%; P = 0.047), very-low-density lipoprotein cholesterol (-9.30%; 95% CI: -15.3%, -2.82%; P = 0.007); TG (-17.4%; 95% CI: -25.0%, -8.99%; P < 0.001)
   Am J Clin Nutr, 2026 · checked 2026-10-02
10. lydp-r2-09 · cohort study
    Compared to avocado non-consumers (during pregnancy), avocado consumers (during pregnancy) had 43.6% lower odds of reporting food allergy among their children at the 12-month follow-up questionnaire while adjusted for relevant covariates.
    Pediatr Res, 2026 · checked 2026-10-02
11. lydp-r2-11 · scoping review
    Larger amounts of avocados were used in interventions than commonly consumed in observational studies (60-300 vs. 0-10 g/d, respectively).
    Front Nutr, 2025 · checked 2026-10-02