Type 2 diabetes in WhyWAIT Program / Obesity / Diabetes Mellitus, Type 2 · Observational Study

Effect of Dairy Consumption on Glycemic Control, Body Weight and Cardiovascular Risk Factors

ClinicalTrials.gov · August 10, 2026

Preliminary Why this matters to you Expert discussion

Early or partial results. Treat as a signal, not a conclusion.

AI Summary

This is a completed observational study registry record examining the relationship between percentage of calories from dairy intake and glycemic control in type 2 diabetes patients participating in intensive lifestyle intervention. No results, effect sizes, or outcome data are reported in this registry entry; the record states only the planned study design, hypothesis, and primary outcome measure.

What was studied

Observational. Diabetes Mellitus, Type 2, Obesity; age from 18 Years; to 75 Years. Intervention: Type 2 diabetes in WhyWAIT Program. n = 51. 1 site: United States.

Key findings

Safety

Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.

Who this may help

The source did not state who this applies to in practice.

Plain-language summary

This is a completed observational registry record with no results posted; it describes a planned study design and hypothesis only, without outcome data or effect estimates.

Study design

As stated by the source record.

MethodsCohort model. Prospective time perspective. Primary outcome measure: Change in Hemoglobin A1C (A1C) (assessed at 24 weeks)

DesignObservational

PopulationDiabetes Mellitus, Type 2, Obesity; age from 18 Years; to 75 Years

Sample size51

InterventionType 2 diabetes in WhyWAIT Program

Setting1 site: United States

Reported figures

Quoted from the source exactly as published.

Sample size51

Primary outcome measureChange in Hemoglobin A1C (A1C)

Follow-up duration24 weeks

Study typeObservational

Caveats

This is a registry record only; no results are reported, and no outcome data, effect sizes, or statistical analyses are available.
Observational design without randomization or explicit control group limits causal inference.
Methods detail (e.g., how dairy intake was measured, confounding adjustment, analysis approach) not provided in registry record.
Study completion status confirmed, but results posting status or publication status unknown from this record.

Evidence assessment

Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.

Study design

limited

Observational design without randomization or control arm.

Directness

moderate

Examines dairy intake and glycemic control directly in type 2 diabetes population.

Consistency

insufficient

Registry record only; no results reported for consistency assessment.

Risk of bias

insufficient

No methods detail provided; observational design carries confounding risk.

Sample adequacy

limited

Actual enrollment 51 participants; modest sample for observational study.

What is missing. This record has no key findings. That is a gap in the analysis, not a judgement about the study.

Source abstract

Registry record from ClinicalTrials.gov (NCT02896140). This is a study registration, not published results. Lead sponsor: Joslin Diabetes Center. Recruitment status: COMPLETED. Study type: OBSERVATIONAL. Enrollment: 51 participants (ACTUAL). Conditions: Diabetes Mellitus, Type 2, Obesity. Interventions: OTHER: Type 2 diabetes in WhyWAIT Program. Primary outcome measures: Change in Hemoglobin A1C (A1C) , 24 weeks. Brief summary: The aim of this study is to determine the relationship between the percentage of calories from dairy intake and long-term glycemic control and weight maintenance in patients with type 2 diabetes who participate in an intensive lifestyle intervention program. The investigators hypothesize that overweight and obese patients with type 2 diabetes who consume higher percentage of calories from dairy products during intensive lifestyle intervention programs have better glycemic control and maintenance of weight loss as compared to those who consume lower percentage of calories from dairy products.

Follow from this

Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.

Type 2 diabetes in WhyWAIT ProgramNCT02896140ObesityDiabetes Mellitus, Type 2Joslin Diabetes Center