Please assess the completion status of the following clinical trial:

Trial Title: Effect of Vitamin D Supplementation on Muscle Mass and Function

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

Eligibility Criteria:
Inclusion Criteria:~* Physical activity scores in the low to very low category~* Fitness estimations in the below average or lower categories~* body mass index scores \>24.9 indicating overweight or obesity.~Exclusion Criteria:~* Use of tanning booths or other artificial UV light exposure~* High baseline vitamin D and calcium intake~* Plans to visit sunny/warm destinations during the winter months/study period~* History or presence of metabolic disease, type 2 diabetes, eating disorders, gastrointestinal disorders, pregnancy or lactation~* Use of drugs to treat obesity (last 12 weeks)~* Use of over the counter anti-obesity agents (last 12 weeks)~* Recent initiation of an exercise program (last four weeks).

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 35 Years
- Healthy Volunteers: t

Study Arms:
- Vitamin D (Type: EXPERIMENTAL): Participants in this arm consumed a 4000 IU vitamin D supplement daily for 12 weeks while participating in a resistance exercise training program.
- Placebo (Type: PLACEBO_COMPARATOR): Participants in this arm consumed a placebo (microcrystalline cellulose) daily for 12 weeks while participating in a resistance exercise training program.

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