Structured population data were available for 3 of 3 supporting studies. 3 studies described participants with type 2 diabetes. 3 studies described adult participants.

1 supporting study does not have a displayable topic-matched quantitative effect.

Evidence uses heterogeneous comparison contexts: baseline_within_group, usual_care.

1 supporting study has high, serious, critical, unclear, or unavailable risk-of-bias information.

2 of 3 studies with duration data have follow-up of 12 weeks or less.

Available source content was suppressed because validation identified a conflict.

Standard care

Core clinician-reference fields are available or not applicable.

Participants received a structured low-calorie diet intervention for 6 weeks.

Low-calorie diet (LCD)

Twenty obese T2D patients were randomized into an intervention group (n=15) (6-week 1000–1200 kcal/day of glycemic and metabolic control LCD)

Participants received standard care without the low-calorie diet intervention.

Twenty obese T2D patients were randomized into a matched control group (n=5)

Authoritative quality diagnostic: invalid or missing unit.

Authoritative quality diagnostic: invalid or missing value.

Authoritative quality diagnostic: sample size arm total mismatch.

Low-Calorie Diet Improves Metabolic Control in Obese T2 Diabetes Patients

Not applicable to this study design or comparison.

Not reported in the authoritative source.

Not extracted from the authoritative source.

Clinician-reference record is usable with limitations in: design, risk_of_bias.

Participants received a 9-day very low-calorie diet with specific calorie restrictions and individualized meal plans.

Very Low-Calorie Diet Intervention

A total of 223 newly diagnosed T2DM patients who received 9-day VLCD intervention (300–600 kcal/day) at the Xiamen Hospital of Traditional Chinese Medicine from July 2021 to December 2023 were enrolled.

Authoritative quality diagnostic: authoritative design unavailable.

Phase angle predicts VLCD success in type 2 diabetes

Clinician-reference record is usable with limitations in: comparator.

Participants received a VLCD for 8 weeks followed by a 4-week transition period.

Very-low-calorie diet (VLCD)

Twenty Thai patients with DM and obesity were enrolled. After a 2-week trial, VLCD (600 kcal/day) was continued for 8 weeks, followed by a 4-week transition period.

Very-low-calorie ketogenic diet × Fasting Plasma Glucose (FPG)

Available supporting studies

Low-Calorie Diet Improves Metabolic Control in Obese T2 Diabetes Patients

Phase angle predicts VLCD success in type 2 diabetes

Very-low-calorie diet improves diabetes remission in Thai patients.