Please assess the completion status of the following clinical trial:

Trial Title: d13C Added Sugar Intake Biomarker: Determining Validity in Children

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: CROSSOVER
- Observational Model: None
- Primary Purpose: PREVENTION
- Time Perspective: None
- Masking: SINGLE
- Phase: None
- Number of Arms: 3.0

Eligibility Criteria:
Inclusion Criteria:~* Cross-sectional study: Age 6-18, both genders~* Controlled feeding study: Age 12-18, both genders, BMI \<95%ile~Exclusion Criteria:~* Controlled feeding study: Food allergies and/or aversions, BMI\>95%ile

- Gender: ALL
- Minimum Age: 6 Years
- Maximum Age: 18 Years
- Healthy Volunteers: t

Study Arms:
- Low, then high added sugar diet (Type: EXPERIMENTAL): Participants will consume a low added sugar (5% total energy) diet for 7 consecutive days. After a 4-week washout period, participants will then consume a high added sugar (25% total energy) diet for 7 consecutive days.
- High, then low added sugar diet (Type: EXPERIMENTAL): Participants will consume a high added sugar (25% total energy) diet for 7 consecutive days. After a 4-week washout period, participants will then consume a low added sugar (5% total energy) diet for 7 consecutive days
- Dietary recall and fingerstick (Type: NO_INTERVENTION): Participants will complete 4 in-person 24-hr dietary recalls and 2 fingerstick blood samples at Visit 1 and 3 within 3 weeks.

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