Eligibility Criteria:
Inclusion Criteria:
* Gender: Both women and men
* Age: between 30 and 60 years
* Ethnicity and race: All
* Are prediabetic (HbA1c \</= 6.4 in the past 3 months), or have a fasting plasma glucose \> 110 mg/dL, or have 2 of the metabolic syndrome criteria as defined by the International Diabetes Federation (IDF):
Central obesity, defined as waist circumference \>/ = 94 cm for men and \>/= 80 cm for women, or a BMI \> 30 kg/m2 plus any two of the following four factors:
* Raised triglycerides: \>/= 150 mg/dL or specific treatment for this lipid abnormality
* Reduced HDL cholesterol:
* Men: \< 40 mg/dL
* Women: \< 50 mg/dL
* Raised blood pressure (BP): systolic BP \>/= 130 mmHg or diastolic BP \>/= 85 mmHg, or treatment of previously diagnosed hypertension
* Raised fasting plasma glucose (FPG): FPG \>/= 100 mg/dL
* Have elevated levels of at least one of the following inflammatory markers: C-Reactive Protein (CRP), Granulocyte-Macrophage Colony-Stimulating Factor (GM-CSF), Interferon gamma (IFN-G), Interleukins (IL-1b, IL-2, IL-6, IL-8, IL-10, IL-12p70), and Tumor necrosis factor alpha (TNF-a).
* Are able to utilize a smart-phone and own an Android (v18+) or Apple phone (i0S9+)
* Are willing to being tracked, provide multiple samples and wear a glucose monitor and a smartwatch 24 hours/day for 77 days
* Are willing to perform finger-stick blood draws
* Are willing to limit swimming to a maximum of 30 minutes per session during the trial
* Are willing to limit traveling to the weekend days
* Live in the vicinity of January Inc office and/or MBC Biolabs (Approximately 25 mile radius)
* Are available for two, 2-4-hour meetings (study orientation and study close-out)
* Eat a steady, consistent diet on a daily basis (see dietary exclusions below)
* Are able to run for the time required to establish VO2 max (3-20 minutes).
* Have the ability and willingness to give written informed consent
Exclusion Criteria:
* Smokers
* BMI =/\> 40
* Actively losing weight
* Unstable diet (defined as having made any major changes to usual diet such as eliminating or significantly increasing a major food group)
* Use of the following medications:
* Blood thinners (i.e. warfarin/Coumadin, clopidogrel/Plavix)
* Daily oral corticosteroids
* Hypoglycemic medication (i.e. Precose, Metformin, Avandia, Victoza)
* Weight loss medication
* Digoxin/Lanoxin
* Lithium/Lithobid
* Theophylline/Theo 24
* Use of the following supplements, unless they agree to discontinue starting 30 days prior to the trial: any nutritional supplements containing antioxidants (examples: multi-vitamins, antioxidant combinations, or any supplement containing vitamin C, vitamin E, beta-carotene or other carotenoids, or selenium), and fish oil/cod liver oil, flaxseed oil, and supplements containing Conjugated linoleic acid (CLA)/Gamma-linolenic acid (GLA) or turmeric.
* Use of antibiotics, antifungals/antiparasitics in the last 30 days
* Use of probiotic or prebiotic supplements in the last 30 days
* People allergic to: adhesives and/or prebiotics used in the trial
* Pregnant, lactating, have given birth in the past 6 months, or are planning to get pregnant in the next 4 months
* Self-reported health conditions:
* Diabetes (T1D or T2D)
* Inflammatory Bowel Disease (Crohn's, Ulcerative Colitis)
* Gastroenteritis, colitis or gastritis
* Active, uncontrolled Clostridium difficile infection or H. pylori (untreated)
* Recent heart attack (past 6 months), history of arrhythmias or cerebrovascular disease
* Undergoing treatment for, or underwent treatment for cancer in the past 6 months
* Esophageal, stomach colon or pancreatic cancer
* Liver disease, other than fatty liver disease
* Immunosuppression or immunodeficiency
* Positive test for HIV, Hepatitis B Virus (HBV) or Hepatitis C Virus (HCV)
* Musculoskeletal disorder that would preclude you from performing moderate physical activity
* LDL cholesterol =/\> 190 mg/dL
* Triglycerides (TG) =/\> 450 mg/dL
* Adrenalectomy
* Pituitary tumor
* Hypothalamic disease
* Stage 3 kidney disease or worse
* Celiac disease confirmed by blood test or biopsy
* Insulinoma
* Cushing's disease
* Hyperthyroidism
* Acromegaly
* Pheochromocytoma
* Addison's disease
* Galactosemia
* Glycogen storage disease
* Hereditary fructose intolerance
* Psychotic disorders or bipolar disorders
* Current eating disorder
* History of bariatric surgery, gallbladder removal, small bowel resection, or extensive bowel resection
* Hospitalization for depression in past 6 months
* Self-reported alcohol or substance abuse within the past 12 months
* Current consumption of more than 14 alcoholic drinks per week, and/or current acute treatment or rehabilitation program for these problems
* Self-reported inability to walk two blocks
* Restrictive diets (i.e. vegetarians, vegans, or very restrictive diets, i.e. Paleo, Atkins, Ornish or ketogenic diets)
* Planned travel (outside of weekends) over the course of the study (77 days) (weekend travel is ok)