Chicken breast or ground beef: a cholesterol tie

Swapping beef for chicken is the classic cholesterol move, and the trials do not back it. A meta-analysis of 8 randomized trials in 406 people free of chronic disease found LDL cholesterol fell by 8.2 mg/dL on beef diets and by 8.9 mg/dL on poultry or fish diets (P = .905). That analysis pooled poultry together with fish, and the beef was not specified as lean. In 191 adults with high LDL, 170 g a day of lean red or lean white meat for 36 weeks left LDL nearly identical, at 154.1 and 154.7 mg/dL, although the red meat included veal and pork and the white meat included fish. Neither trial tested chicken breast against ground beef head to head, and we found no trial that did. The plate is where the choice shows. Grilled skinless chicken breast gives 32.0 g protein and 2.2 g fat per 3.5 oz (100 g) in the UK reference table. Ground beef depends on the fat figure on the pack. In one laboratory batch, 24 percent fat patties lost nearly 41 percent of their fat when pan fried and drained, while 5 percent fat patties lost none that could be detected.

How much is actually in it

• Grilled skinless chicken breast provides 148 calories, 32.0 g protein and 2.2 g fat per 3.5 oz (100 g). — — Evidence E source
  Per 100 g
• According to the NIH Office of Dietary Supplements, 3 ounces of broiled 93% lean ground beef provide 72 mg choline, 13% of the Daily Value. — — Evidence E source
  72 mg, 13% DV

What a real portion looks like

• In the US dietary survey, a medium ground beef patty is counted as 85 g and a medium grilled chicken breast as 120 g. — — Evidence E source
  Patty 85 g, chicken breast 120 g

What your body absorbs

• In a crossover RCT on 16 older adults, a meal with 100 g lean ground beef gave about 47% higher muscle protein synthesis than a matched vegan meal over 6 hours. — 16 older (65-85 y) adults (8 males, 8 females) (n = 16) Evidence B source
  0.052 vs 0.035 %/h, P = 0.037, plasma essential amino acid iAUC 87 vs 38
• In a crossover RCT on 12 older adults, green kiwifruit eaten with 100 g ground beef sped up the rise of plasma essential amino acids without changing the total absorbed. — Twelve healthy older males (N = 6) and females (N = 6) (n = 12) Evidence B source
  Faster rise in EAAs (P < 0.01 interaction), no difference in total EAAs absorbed
• Animal data suggest zinc from cooked ground beef is about as available as zinc carbonate, with pigs retaining about 70% versus 30% from soybean protein. — young swine, 4 trials with total n = 104 (n = 104) Evidence D source
  About 70% vs 30% zinc retained

What cooking and storage change

• Laboratory analysis in a feeding trial found 24% fat ground beef patties lost nearly 41% of their fat when pan fried, while 5% fat patties lost no detectable fat. — ground beef patties analyzed raw and pan fried Evidence D source
  About 41% fat loss in high-fat patties, none detectable in low-fat patties
• By the USDA table for broiled ground beef, about 60% of vitamin B6 and 80% of vitamin B12 remain after cooking, while zinc stays at 100%. — — Evidence E source
  B6 60%, B12 80%, thiamin 80%, zinc 100%

What it does to your health

• In an RCT on 191 adults with high cholesterol, 170 g a day of lean red or lean white meat for 36 weeks gave nearly identical LDL, about 1% to 3% below baseline. — 191 men and women with LDL cholesterol 130-190 mg/dL, 36 weeks (n = 191) Evidence B source
  LDL 154.1 vs 154.7 mg/dL in lean red vs lean white meat groups
• In a crossover RCT on 25 men, five 115 g ground beef patties a week for 5 weeks lowered HDL and LDL cholesterol with both 24% and 5% fat beef. — 25 men (mean age 40 years, BMI 31.2), 5 weeks per period (n = 25) Evidence B source
  HDL-C decreased (p = 0.001), LDL-C decreased (p = 0.011)
• Observational data from a 12-week feeding trial link choosing chicken more often at dinner, in place of beef, with greater blood pressure reductions. — Fifty-two adults with two or more features of metabolic syndrome, 12 weeks (n = 52) Evidence C source
  SBP p = 0.034, DBP p = 0.021 for replacing beef with chicken, no link with lipids

Safety, limits and interactions

• In US retail beef, Salmonella was found in about 0.4% to 0.6% of ground beef packages and Campylobacter in 7.35% of ground beef samples. — Retail raw ground and whole-muscle beef (n = 2,885) samples, 38 US cities, 2010 (n = 2885) Evidence C source
  Campylobacter 7.35% ground vs 17.24% whole cuts
• Observational data pooled across 33 studies put Salmonella in bovine lymph nodes that end up in ground beef at 10.8%. — bovine deep tissue lymph nodes, 33 studies (n = 33 studies) Evidence C source
  10.8% (95% CI 7.5 to 14.5)
• USDA FSIS sets 165 °F (74 °C) for poultry and 160 °F (71 °C) for hamburger, measured with a food thermometer, and warns that ground beef can turn brown before bacteria are destroyed. — consumers cooking chicken and ground beef, USA Evidence E source
  165 °F poultry; 160 °F ground beef
• FSIS says the toxin made by STEC bacteria such as E. coli O157:H7 may cause hemolytic uremic syndrome, particularly in young children, and names children under 5, pregnant women, people 65 or older and people with weakened immune systems as most at risk from contaminated food. — children under 5 years old, pregnant women, people aged 65 or older, people with immune systems weakened by cancer, kidney disease and other illnesses Evidence E source
  STEC toxin causes hemorrhagic colitis and may cause hemolytic uremic syndrome, particularly in young children; named groups most at risk from contaminated food

What people believe that the data does not support

• By a meta-analysis of 8 randomized trials, fasting cholesterol, LDL, HDL and triglyceride changes did not differ between beef and poultry or fish diets. — 8 studies involving 406 subjects free of chronic disease (n = 406) Evidence A source
  LDL -8.2 vs -8.9 mg/dL (P = .905), total cholesterol -8.1 vs -6.2 mg/dL (P = .630)
• Animal data do not support the idea that beef from hormone-implanted cattle brings on early puberty, as gilts fed it reached estrus no sooner than others. — prepubertal gilts fed a daily cooked patty Evidence D source
  Days to estrus P = 0.55, tofu estrogen equivalents about 570 times natural beef

Who this works differently for

• In an RCT on 86 adolescents over 3 months, serum ferritin held steady on a lean beef diet and fell by a median 6.8 microg/dL on lean poultry and fish. — Eighty-six seventh and eighth graders, 3 months (n = 86) Evidence B source
  Ferritin change median 0.7 vs -6.8 microg/dL, drop not clinically significant
• In an RCT on 93 older women, 12 weeks of resistance training alone raised arterial stiffness markers more than the control group, in a trial that also had an arm adding steamed chicken breast. — Ninety-three elderly women (67.2 ± 5.3 years), 12 weeks (n = 93) Evidence B source
  CfPWV change +4.9% with training alone, significantly higher than control

The bottom line

For older people building muscle, beef has one small, direct result. In a crossover trial on 16 adults aged 65 to 85, a single meal with 100 g lean ground beef raised muscle protein synthesis about 47 percent more than a matched vegan meal over 6 hours (0.052 against 0.035 percent per hour). Adding green kiwifruit to the same 3.5 oz (100 g) of beef made essential amino acids reach the blood faster in 12 older adults, without changing the total absorbed. In one trial the fat level of the beef did not change the direction of the result. 25 men ate five 115 g patties a week for 5 weeks, and both the 24 percent and the 5 percent fat beef lowered LDL and HDL cholesterol, in a small, men only study from a beef industry related research group. In 52 adults with features of metabolic syndrome, eating chicken at dinner more often in place of beef went along with larger drops in blood pressure. That analysis was observational within a trial, and its authors say it does not show that chicken lowers blood pressure. A medium ground beef patty is counted as 85 g in the US dietary survey and a medium grilled chicken breast as 120 g. Three ounces of broiled 93 percent lean ground beef give 72 mg choline, 13 percent of the Daily Value. The USDA table for broiled ground beef keeps about 60 percent of vitamin B6, 80 percent of B12 and all of the zinc, using a group level factor that dates from 1975. Pigs retained about 70 percent of the zinc from cooked ground beef against 30 percent from soybean protein, which is a swine result and has not been measured in people. Hormone implants in cattle are often blamed for early puberty. Young female pigs fed a daily cooked patty of implanted beef reached their first heat no sooner than the others (P = 0.55). Humans were not studied. The real caution with ground beef is bacteria. In 2,885 retail beef samples from 38 US cities in 2010, Salmonella turned up in 0.42 to 0.63 percent of ground beef packages and Campylobacter in 7.35 percent of ground beef samples. Pooled across 33 studies with wide disagreement between them, 10.8 percent of the deep lymph nodes that end up in ground beef carried Salmonella (95% CI 7.5 to 14.5). USDA FSIS sets 160 °F (71 °C) for hamburger and 165 °F (74 °C) for whole or ground poultry, measured with a food thermometer, and warns that ground beef can turn brown before bacteria are destroyed. For ground beef, FSIS also says the toxin made by STEC bacteria such as E. coli O157:H7 may cause hemolytic uremic syndrome, particularly in young children, and names children under 5, pregnant women, people aged 65 or older and people whose immune systems are weakened by cancer, kidney disease and other illnesses as most at risk from contaminated food. For teenagers, a 3 month trial in 86 seventh and eighth graders found serum ferritin held steady on lean beef and fell by a median 6.8 microg/dL on lean poultry and fish, a drop the authors call not clinically significant. Beyond those infection risk groups, we found nothing on pregnancy, allergy or medicines for either meat.

Sources

1. cbgb-r3-14 · CoFID 2021, dataset
   Chicken, breast, grilled without skin, meat only (CoFID 18-323): Energy (kcal) 148; Protein (g) 32.0; Fat (g) 2.2; Cholesterol (mg) 94.0; Water (g) 66.6
   CoFID 2021, Public Health England, code 18-323 · checked 2026-10-01
2. cbgb-r3-17 · agency fact sheet
   Beef, ground, 93% lean meat, broiled, 3 ounces 72 13
   NIH Office of Dietary Supplements, Choline fact sheet · checked 2026-10-01
3. cbgb-r3-16 · USDA FNDDS, dataset
   Beef, ground, patty (FNDDS 21500310, fdc_id 2705855): 1 medium patty 85 g; Chicken breast, grilled without sauce, skin not eaten (FNDDS 24123301, fdc_id 2705968): 1 medium breast 120 g
   USDA FNDDS, codes 21500310 and 24123301 · checked 2026-10-01
4. cbgb-r3-07 · RCT
   Ingestion of MEAT resulted in ∼47% higher postprandial muscle protein synthesis rates when compared with the ingestion of PLANT (0.052 ± 0.023 and 0.035 ± 0.021 %/h, respectively; paired-samples t test: P = 0.037).
   J Nutr, 2024 · checked 2026-10-01
5. cbgb-r3-08 · RCT
   Hayward green kiwifruit consumption with beef resulted in a more rapid increase in peripheral plasma essential amino acid concentrations. ... However, there was no difference in the total amount of EAAs absorbed.
   Eur J Nutr, 2021 · checked 2026-10-01
6. cbgb-r3-09 · animal study
   Pigs fed the diets with 9 mg Zn/kg from GB or ZnCO(3) were not different in Zn availability and retained about 70% Zn (apparent balance and (65)Zn) compared with 30% (P ≤ 0.05) for pigs fed the diet with 9 mg Zn/kg from SP.
   J Anim Sci, 2014 · checked 2026-10-01
7. cbgb-r3-05 · laboratory measurement
   The LF patties did not lose a detectable amount of fat following pan frying, but the HF patties lost nearly 41% fat after frying.
   Nutrients, 2023 · checked 2026-10-01
8. cbgb-r3-15 · USDA Table of Nutrient Retention Factors, dataset
   USDA-RETN-R6:603 BEEF,BROILED GROUND, group Beef Products: vitamin_b6_mg 60% retained, thiamin_mg 80%, vitamin_b12_ug 80%, iron_mg 95%, zinc_mg 100%
   USDA Table of Nutrient Retention Factors, Release 6, 2007, code 603 · checked 2026-10-01
9. cbgb-r3-02 · RCT
   After randomization, mean concentrations of total cholesterol (6.09 mmol/L [235.7 mg/dL] vs 6.08 mmol/L [235.2 mg/dL]) and low-density lipoprotein cholesterol (3.99 mmol/L [154.1 mg/dL] vs4.01 mmol/L [154.7 mg/dL]) were nearly identical in the LRM and LWM groups (1%-3% below baseline) during treatment.
   Arch Intern Med, 1999 · checked 2026-10-01
10. cbgb-r3-04 · RCT
    In a randomized 2-period crossover, controlled feeding trial, 25 men (mean age and body mass index, 40 years and 31.2) consumed 115-g HF or LF patties, 5/week for 5 weeks with a 4-week washout. ... The HF and LF treatments decreased the plasma concentrations of HDL-C (p = 0.001) and LDL-C (p = 0.011).
    Nutrients, 2023 · checked 2026-10-01
11. cbgb-r3-06 · post hoc analysis
    More frequent consumption of chicken at dinner, in place of beef and seafood, was associated with greater reductions in SBP (p = 0.034 and p = 0.047 for replacing beef and seafood, respectively) and DBP (p = 0.021 and p = 0.043, respectively).
    Nutrients, 2026 · checked 2026-10-01
12. cbgb-r3-11 · prevalence study
    The prevalence of Salmonella in ground beef packages was 0.42% for modified atmosphere packaging, 0.63% for chub packaging, and 0.59% for overwrapped packages. ... A greater percentage (17.24%, P < 0.01) of whole-muscle cuts tested positive for Campylobacter compared with ground beef samples (7.35%).
    J Food Prot, 2012 · checked 2026-10-01
13. cbgb-r3-12 · meta-analysis (observational)
    The pooled Salmonella prevalence in DTLNs was 10.8% (95% CI [7.5, 14.5]), with significant heterogeneity between studies.
    Int J Food Microbiol, 2026 · checked 2026-10-01
14. sf-fsis-10 · agency advice
    FSIS recommends cooking whole poultry to a safe minimum internal temperature of 165 °F as measured using a food thermometer...Cook ground poultry to a safe minimum internal temperature of 165 °F as measured with a food thermometer. ...Ground beef may turn brown before it has reached a temperature at which bacteria are destroyed. ...A hamburger cooked to 160 °F (165 °F for ground poultry), measured with a food thermometer throughout the patty...is safe — regardless of color.
    USDA FSIS, Doneness Versus Safety · checked 2026-10-08
15. sf-stec-r3-chickgb-1 · agency advice
    STECs produce large quantities of a potent toxin that forms in the intestine and causes severe damage to the lining of the intestine. This causes a disease called hemorrhagic colitis, and may also cause hemolytic uremic syndrome, particularly in young children. ... Children under 5 years old, pregnant women, people aged 65 or older and those with immune systems that have been weakened by cancer, kidney disease and other illnesses are most at risk and vulnerable to illnesses associated with contaminated food.
    Ground Beef and Food Safety, USDA Food Safety and Inspection Service · checked 2026-10-08
16. cbgb-r3-01 · meta-analysis of RCTs
    Relative to the baseline diet, mean ± standard error changes (in mg/dL) after beef versus poultry/fish consumption, respectively, were -8.1 ± 2.8 vs. -6.2 ± 3.1 for total cholesterol (P = .630), -8.2 ± 4.2 vs. -8.9 ± 4.4 for low-density lipoprotein cholesterol (P = .905)
    J Clin Lipidol, 2012 · checked 2026-10-01
17. cbgb-r3-10 · animal study
    CONCLUSIONS: Consumption of beef from growth implanted or natural steers or tofu at levels similar to those typically consumed by humans did not impact growth or onset of estrus in these prepubertal gilts.
    J Nutr, 2014 · checked 2026-10-01
18. cbgb-r3-03 · RCT
    Although serum ferritin level change between baseline and intervention was significantly different between the lean beef and lean poultry and fish groups (median [interquartile range] 0.7 [-6, 8] and -6.8 [-12, 2] microg/dL, respectively), the drop in the lean poultry and fish group was not clinically significant.
    J Am Diet Assoc, 2004 · checked 2026-10-01
19. cbgb-r3-13 · RCT
    Percent changes in carotid-femoral pulse wave velocity (cfPWV) and carotid β-stiffness (indices of arterial stiffness), and circulating angiotensin II (a vasoconstrictor peptide hormone) levels via each intervention were significantly higher in the RT group (4.9 ± 12.7%, 13.8 ± 13.5%, 94.9 ± 132.7%, respectively), as compared with the CON group
    J Cachexia Sarcopenia Muscle, 2025 · checked 2026-10-01