In this Bogalusa Heart Study analysis, 24 of 46 children (52.2%) became nonoverweight or obese as adults. The paper also reports that 16 of 46 children (34.8%) became metabolically abnormal and overweight or obese as adults, while only 6 of 46 (13%) retained metabolically healthy obesity into adulthood.

From baseline to follow-up, the percentage of participants who were overweight increased from 24.7% to 57.7% in young adulthood. A total of 35.2% of the children shifted from normal weight in childhood to overweight in young adulthood. A total of 61.9% of the participants in the highest BMI quartile in childhood remained in the highest BMI quartile in young adulthood, indicating strong tracking of excess weight status from childhood into adulthood.

The registry page identifies the Bogalusa Heart Study as a long-term study and links it to research on excess body weight and adult cardiovascular outcomes. The page itself does not report the childhood-to-adult weight-transition percentages in the claim.

The study’s official site states that it followed local children into their adult years and showed that heart disease can start in childhood. This is authoritative on the study’s scope, but it does not supply the claim’s exact adult-weight percentages.

In a widely cited systematic review and meta-analysis that includes data from the Bogalusa Heart Study among other cohorts, Singh et al. report that "Among obese children, 52% to 80% remained obese in adulthood, and among obese adolescents, 70% to 80% remained obese in adulthood." They add that "Among adults who were obese, approximately 30% to 80% were obese as children." Although this paper does not give a single 25%/75% split from Bogalusa specifically, it shows that a large majority of obese children in longitudinal cohorts (including Bogalusa) remain obese as adults, with a smaller fraction returning to normal weight.

This longitudinal study consisted of 710 adults, age 26 to 48 years, who had been examined for BMI and blood pressure 4 or more times during childhood and 2 or more times during adulthood, with a mean follow-up period of 28.0 years. The study focused on the cumulative burden of overweight/obesity since early life and found that childhood excessive body weight was linked to increased adult cardiac mass predominantly through adult increased BMI. These findings suggest that long-term influence of increased BMI since early life has adverse impact on subclinical changes in cardiac structure, and childhood excessive body weight and adult left ventricular hypertrophy are linked through increased BMI and elevated blood pressure in later life, illustrating that many with excess weight in childhood continue to have excess weight as adults.

This review of longitudinal cohorts including the Bogalusa Heart Study summarizes tracking of adiposity: "Most studies reported that overweight or obese children were more likely to become overweight or obese adults compared with normal-weight children, with tracking coefficients ranging from 0.3 to 0.9." It notes that in studies like Bogalusa, "a substantial proportion but not all overweight children remained overweight as adults," indicating both persistence and some reversion to normal weight, but it does not specify a 25% / 75% split unique to Bogalusa.

Reiterating findings from cohorts such as the Bogalusa Heart Study, this meta-analysis reports that "Overweight or obese children were about five times more likely to be overweight or obese in adulthood than normal-weight children." It explains that the probability of remaining obese from childhood to adulthood is substantially higher than reverting to normal weight, but it again presents ranges and relative risks rather than stating that exactly 25% achieved healthy weight and 75% remained overweight.

In one of the classic Bogalusa analyses of BMI tracking, the authors state: "Children in the highest quartile of body mass index (BMI) were more likely to remain in the highest quartile as adults." They quantify that "about 60% of children who were in the highest BMI quartile remained in the highest quartile as adults," whereas fewer initially high-BMI children moved to lower quartiles. This article demonstrates strong persistence of high relative weight from childhood into adulthood in Bogalusa but does not frame it as 25% achieving healthy weight versus 75% remaining overweight.

This Bogalusa Heart Study paper notes that body mass index and other risk factors measured in childhood are strongly associated with adult outcomes: "Childhood BMI was significantly correlated with adult BMI (r=0.58, P<0.001)" and individuals in higher childhood BMI categories were more likely to have increased carotid intima-media thickness as adults. While it supports the concept of BMI tracking from childhood to adulthood, it does not provide a simple breakdown such as '25% reached healthy weight and 75% remained overweight or obese.'

In examining metabolic syndrome outcomes, the authors from the Bogalusa Heart Study report that "Childhood BMI, waist circumference, and skinfold thickness were significant predictors of adult metabolic syndrome and its components." They observe that those in the highest tertiles or quartiles of adiposity in childhood were much more likely to have adverse outcomes as adults. However, the paper focuses on risk prediction and odds ratios and does not summarize the data as a fixed percentage of children who returned to a healthy weight versus those who stayed overweight.

This overview describes the Bogalusa Heart Study as a long-term population study that followed children into adulthood. It is a background source for the cohort, but it does not provide the specific adulthood weight-retention percentages stated in the claim.

ACC summarizes that the Bogalusa Heart Study is a long-term epidemiologic study beginning in childhood and continuing into adulthood, and that early-life risk factors predict adult disease. It does not provide the specific adulthood weight-status proportions in the claim.

The Bogalusa Heart Study taught us, if your childhood weight was high, if you did not exercise and eat fruits and vegetables, and if your parents smoked, you were at risk for heart disease as an adult. Right now, they have only found about 1,400 of the more than 12,000 people who were in the original Bogalusa Heart Study. If you were one of them, or know how to get in touch with someone, call 985-735-9861.

The synopsis says that increases in weight were observed over the study period and that children in the uppermost weight quartiles showed marked changes over time. It provides cohort context, but not the specific 25% versus 75% adulthood weight-status breakdown in the claim.

In detailed tracking analyses, the authors report that 62.0% of children in the top BMI quartile remained in the top BMI quartile in adulthood, compared with 25% expected if BMI were randomly distributed across quartiles. They interpret this as "strong BMI tracking" from childhood to adulthood over an average period of 24.2 years in the Bogalusa cohort. The data tables further show that a minority of children with high BMI shifted to lower BMI quartiles by adulthood, while most remained in higher BMI categories, but the paper does not express these transitions as a simple 25% vs 75% split for all participants.

LSU describes the Bogalusa Heart Study as a landmark long-term study that tracked people from childhood into middle age. The article offers historical context but does not state the specific fraction of participants who reached healthy weight as adults.

Across multiple Bogalusa Heart Study publications, investigators consistently report that childhood BMI is strongly correlated with adult BMI and that excess weight status tends to track from childhood into adulthood for many participants. Typical findings include that a majority of children in the highest BMI quartile remain in high BMI categories as adults, and a substantial fraction of normal-weight children become overweight or obese as adults. However, these papers present tracking in terms of quartiles and transition matrices rather than summarizing the cohort with a single statement such as "25% reached a healthy weight and 75% remained overweight or obese" for all participants.

This secondary summary says that 11% of the 9,167 children were overweight and that overweight in childhood predicted later cardiovascular risk factors. It does not address the claim’s adult normal-weight versus overweight/obese percentages.