Dutch apple pie: a dessert nobody has studied directly

Nobody has run a trial on Dutch apple pie, so everything here is borrowed from its parts. The strongest borrowed number is about the butter in the crumb and crust. Across 12 long-term randomized trials with 53,758 people, eating less saturated fat lowered combined cardiovascular events by 17 percent (RR 0.83, 95% CI 0.70 to 0.98), moderate-quality evidence about whole diets that says nothing about pie specifically. The apple side is weaker. In an 8-week crossover in 40 adults with mildly high cholesterol, two raw apples a day brought LDL cholesterol to 144 mg/dL (3.72 mmol/L) against 3.86 on a sugar-matched apple drink, and a slice of pie holds far less apple, cooked and sweetened. The only USDA record, for one commercial pie, gives 44.5 g of carbohydrate per 3.5 oz (100 g) with no sampled range behind it.

How much is actually in it

• USDA has a single record for commercially prepared Dutch apple pie, at 44.5 g of carbohydrate per 3.5 oz (100 g), with no sampled range behind the number. — USDA SR Legacy record for Pie, Dutch Apple, Commercially Prepared (n = 1 record) Evidence E source
  Carbohydrate 44.54 g per 3.5 oz (100 g) (16% DV), copper 0.148 mg (16% DV), thiamin 0.193 mg (16% DV)

What a real portion looks like

• For US adults, the cake, cookies, quick bread, pastry and pie group supplied 7.2 percent of daily energy, tied with yeast breads as the top energy source in NHANES 2003 to 2006. — 9490 US adults aged 19 and over, one 24-hour recall, NHANES 2003 to 2006 (n = 9490) Evidence C source
  7.2% of total energy from cake/cookies/quick bread/pastry/pie

What your body absorbs

• In a randomized meal test in healthy men, a sugar pie raised insulin significantly 30 minutes after eating as blood glucose rose, and glucagon fell, the opposite of beef and fish meals. — healthy adult men, randomized comparison of four test meals (sugar pie, whipped cream, beef steak, fish fillet) (n = not stated in the abstract) Evidence B source
  Significant insulin rise at 30 min after sugar pie; glucagon significantly lower after sugar pie, higher after beef and fish

What cooking and storage change

• Across 28 studies of wheat-based foods, acrylamide formed in baking was the most studied processing contaminant, at a pooled 136 micrograms per kg. — commercial and laboratory samples of wheat-based foods in 28 analytical studies (n = 28 studies) Evidence D source
  Acrylamide 136.29 micrograms/kg; HMF 70.59 micrograms/kg; PAHs 0.11 micrograms/kg

What it does to your health

• In an 8-week crossover trial in 40 mildly hypercholesterolemic adults, two whole apples a day lowered LDL cholesterol to 144 mg/dL (3.72 mmol/L) against 149 mg/dL (3.86 mmol/L) with a sugar-matched apple drink. — 40 healthy mildly hypercholesterolemic adults (23 women, 17 men), mean age 51, 8 weeks per arm with a 4-week washout (n = 40) Evidence B source
  LDL cholesterol 144 vs 149 mg/dL (3.72 vs 3.86 mmol/L) (P = 0.031), total cholesterol 228 vs 236 mg/dL (5.89 vs 6.11 mmol/L) (P = 0.006), no effect on blood pressure
• Across 12 long-term randomized trials with 53,758 people, cutting saturated fat lowered combined cardiovascular events by 17 percent (RR 0.83, 95% CI 0.70 to 0.98). — adults with or without cardiovascular disease in 12 long-term RCTs (at least 24 months) (n = 53758) Evidence A source
  Combined cardiovascular events RR 0.83 (95% CI 0.70 to 0.98), moderate-quality evidence; little or no effect on all-cause mortality

Safety, limits and interactions

• Across 90 studies of apples and apple products, 42.8 percent of checks exceeded EU maximum residue limits, but only 12.5 percent in North America. — apple and apple-product samples in 90 analytical studies worldwide (n = 90 studies) Evidence D source
  Overall MRL exceedance 42.8%; pesticides 51.6%, heavy metals 42.55%, mycotoxins 40.2%; North America 12.5%, Middle East 65.2%

What people believe that the data does not support

• The European Union refused a claim that an apple polyphenol extract helps moderate blood glucose after meals, and of 17 apple-related claims in the register none is authorized. — European Union food labeling, apple-related health claims Evidence E source
  POL-HC-7857 non-authorized; 0 of 17 apple-related claims authorized

Who this works differently for

• Apple allergy linked to birch pollen is common, and in an uncontrolled 12-month trial 36 patients built lasting tolerance by eating fresh apples in rising doses. — 36 patients with birch pollen food allergy syndrome to apples, 12 months of graded fresh apple intake (n = 36) Evidence C source
  Consistent and durable tolerance of apples after therapy; Mal d 1 specific IgE and skin prick reactivity fell

What is still unknown

• A 2026 systematic review of 38 human intervention studies on apples and apple products concludes that the evidence is still insufficient for definitive conclusions about cardiometabolic effects. — 38 human intervention studies of apples and apple-based products (n = 38 studies) Evidence C source
  Short-term benefits on glycemia, antioxidant capacity and endothelial function suggested; no definitive conclusion

The bottom line

What the pie does after a meal is known only by analogy. In healthy men, a sugar pie raised insulin significantly 30 minutes after eating as blood glucose rose, in a randomized meal test whose abstract gives no numbers and which did not use apple pie. For US adults, the group of cake, cookies, quick bread, pastry and pie supplied 7.2 percent of daily energy in NHANES 2003 to 2006, a one-day recall that is now twenty years old. Baking wheat dough forms acrylamide, and 28 studies of bread, cookies and pasta pooled it at 136 micrograms per kg, an occurrence figure that was not measured on pie crust and says nothing about harm. Apples do not come with an approved health claim in Europe. The EU refused a claim that an apple polyphenol extract helps moderate blood glucose after meals, and none of 17 apple-related claims in its register is authorized. A 2026 review of 38 human studies of apples and apple products concluded that the evidence is still insufficient for definitive conclusions. We found no study on what baking does to apple polyphenols. Two cautions come from the cards. Apple allergy linked to birch pollen is common, and whether baked apple in a pie is tolerated by people with it was not tested in the study we have. Across 90 studies of apples and apple products, 42.8 percent of checks exceeded EU maximum residue limits for pesticides, heavy metals or mycotoxins, figures about raw samples with strong regional differences, and baking was not studied. We have no card on allergy to the wheat or butter in the pastry, or on pregnancy, children or medicines.

Sources

1. dapi-r4-01 · USDA FoodData Central SR Legacy, dataset
   Pie, Dutch Apple, Commercially Prepared (FDC 167522, SR Legacy, Baked Products): carbohydrate 44.54 g per 100 g = 16% DV; copper 0.148 mg = 16% DV; thiamin 0.193 mg = 16% DV; Foundation samples 0, CoFID match none
   USDA FoodData Central, SR Legacy, FDC 167522 · checked 2026-09-29
2. dapi-r4-06 · survey
   The highest ranked sources of energy and nutrients among adults more than 19 years old were: energy - yeast bread/rolls (7.2%) and cake/cookies/quick bread/pastry/pie (7.2%)
   Nutrients, 2012 · checked 2026-09-29
3. dapi-r4-02 · RCT
   Thirty min later due to plasma glucose elevation, a significant increase in insulin was observed with the sugar pie.
   Horm Metab Res, 1996 · checked 2026-09-29
4. dapi-r4-05 · occurrence meta-analysis
   The highest concentration was for acrylamide (136.29 µg·kg-1) followed by HMF (70.59 µg·kg-1) and PAHs (0.11 µg·kg-1).
   Crit Rev Food Sci Nutr, 2023 · checked 2026-09-29
5. dapi-r4-03 · randomized crossover trial
   Whole apple (WA) consumption decreased serum total (WA: 5.89 mmol/L; CB: 6.11 mmol/L; P = 0.006) and LDL cholesterol (WA: 3.72 mmol/L; CB: 3.86 mmol/L; P = 0.031), triacylglycerol (WA: 1.17 mmol/L; CB: 1.30 mmol/L; P = 0.021), and intercellular cell adhesion molecule-1 (WA: 153.9 ng/mL; CB: 159.4 ng/mL; P = 0.028), and increased serum uric acid (WA: 341.4 μmol/L; CB: 330 μmol/L; P = 0.020) compared with the CB.
   Am J Clin Nutr, 2020 · checked 2026-09-29
6. dapi-r4-04 · meta-analysis of RCTs
   The included long-term trials suggested that reducing dietary saturated fat reduced the risk of combined cardiovascular events by 17% (risk ratio (RR) 0.83; 95% confidence interval (CI) 0.70 to 0.98, 12 trials, 53,758 participants of whom 8% had a cardiovascular event, I² = 67%, GRADE moderate-quality evidence).
   Cochrane Database Syst Rev, 2020 · checked 2026-09-29
7. dapi-r4-10 · occurrence meta-analysis
   We selected 90 articles in which we were able to assess compliance with the European Food Safety Authority's (EFSA) regulations and found a 42.8% overall rate of checks exceeding the Maximum Residue Limit (MRL), a 51.6% rate for pesticides, a 42.55% rate for heavy metals, and a 40.2% rate for mycotoxins.
   Compr Rev Food Sci Food Saf, 2025 · checked 2026-09-29
8. dapi-r4-07 · regulatory register entry
   POL-HC-7857 Pyrus malus (Common Name Apple) extract powder containing polyphenols Can help to moderate the postprandial blood glucose level. Can help to decrease the blood glucose level. Non-authorised
   EU Register on nutrition and health claims, claim POL-HC-7857, snapshot 2026-09-21 · checked 2026-09-29
9. dapi-r4-08 · uncontrolled clinical trial
   Birch pollen food allergy syndrome to apples is prevalent, but no approved or standardized treatment exists so far.
   J Allergy Clin Immunol Pract, 2025 · checked 2026-09-29
10. dapi-r4-09 · systematic review
    However, the current evidence remains insufficient to draw definitive conclusions.
    Food Funct, 2026 · checked 2026-09-29