Currently, controlled studies are lacking which test the benefits of: 1) ω3 PUFA; and 2) heat therapy on improving vascular-metabolic-microbiota health in Hispanic American populations. The investigator's objective is to determine if this modality (heat therapy i.e., warm water immersion, hot tubs) combined with dietary interventions (increased fish and/or fish oil intake) may be feasible treatments to improve cardiovascular risk factors and reduced comorbidities in Hispanic populations.

In a double-blind, placebo-controlled design, participants will be randomized to the following experimental treatments:

1. 4 g omega 3 daily for 12 weeks combined with 6 weeks of heat therapy
2. Placebo pill daily for 12 weeks with 6 weeks of heat therapy (HT)

non-obese healthy will only serve as controls and enroll in placebo and neutral control therapy conditions.

HT will entail 14 consecutive days of 1.5 hours passive heating (increase internal temperature 1.2°C above baseline), followed by 4 weeks of HT, 3 days per week.

Inclusion Criteria:

• BMI>30-40,
• fasting glucose 100-125,
• blood pressure 130-139/80-89,
• Hispanic American,
• age 18-65 years

Exclusion Criteria:

• non-Hispanic,
• BMI<30, >40,
• fasting glucose <100, >125,
• blood pressure <130,>139 systolic, >90 diastolic,
• age <18, >65 years

Placebo or Omega 3 supplementation