Please assess the completion status of the following clinical trial:

Trial Title: Effect of Calcium + Vitamin D Supplementation on Weight Management in Very-low Calcium Consumers

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: PHASE4
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* Male or female 18 to 25 years of age, generally healthy~* Habitual calcium intake below 600mg/d~* Overweight or obese (BMI between 24 and 35kg/m2, refer to the Chinese standard)~* Stable body weight (body weight change less than 1kg two months before screening)~* Less than 3 times of 20min of physical exercise per week~* Signed written informed consent~Exclusion Criteria:~* Coronary heart disease, hypertension, diabetes; hepatic insufficiency or renal insufficiency, hyper- or hypothyroidism, mal-absorption, cholesterol concentrations requiring pharmaceutical treatment~* Pregnant or lactating woman~* Use of calcium supplements, oral antidiabetic agents, antihyperlipidemics or any other medications affecting metabolism 30 days before randomization~* Participating in another weight loss programs (i.e. taking oral pharmacotherapeutic agents and/or herbal preparations intended for the management of obesity; excessive physical activity; be on a diet)~* On special diets (i.e. vegetarian)~* Presently taking or have recently taken a prescription drug such as fluoroquinolone antibiotics, tetracycline, or levothyroxine (thyroid medication)~* Participating in another clinical trial 6 months before randomization~* Unlikely to be compliant (i.e. alcohol, drug abuse)~* Refusal or inability to give informed consent to participate in the study

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 25 Years
- Healthy Volunteers: t

Study Arms:
- Calcium+D (Type: EXPERIMENTAL): Calcium supplements provide 600mg of calcium and 125IU vitamin D per day. A balanced diet contains 500kcal of caloric deficit based on daily energy expenditure.
- Control (Type: PLACEBO_COMPARATOR): A balanced diet contains 500kcal of caloric deficit based on daily energy expenditure.

Based on this trial design, predict the completion outcome and termination type (if applicable).