Chia Seed Oil Supplementation Has No Influence on Running Performance, The FASEB Journal, April 2015, David Nieman1, Nicholas Gillitt2, Mary Pat Meaney1, Dustin Dew1 and Fuxia Jin2
- 1NCRC Appalachian State University United States
- 2Dole Nutrition Research Laboratory Dole Foods United States
Chia Seed Oil Supplementation Has No Influence on Running Performance
Plasma ALA levels peak about 2 h after ingestion, and 60-85% is utilized by tissues for energy, higher than the 50% shown for other oils. This study determined if consuming 10.5 kcal/kg ALA-rich chia seed oil before and during running to exhaustion improved performance compared to water. Runners (N=24, age 38.0±1.7 y, VO2max 47.9±1.6 ml/kg/min) reported to the lab twice in an overnight fasted state, 2 weeks apart (randomized, crossover). After a blood sample at 8:00 am, subjects ingested 10 ml/kg water with or without 7 kcal/kg chia seed oil, provided a blood sample at 8:30 am, and then ran to exhaustion (70% VO2max). Subjects ingested 3 ml/kg water/15 min during both trials, and 3.5 kcal/kg chia seed oil after 1 h running. Metabolic measures (Cosmed CPET, Rome, Italy) and RPE were measured during the running bouts. Blood samples were collected immediately- and 1-h post-exercise, and analyzed for ALA, glucose, lactate, cortisol, IL-6, IL-8, IL-10, TNF-α, and total leukocytes. Despite elevated plasma ALA during the chia seed oil (337%) compared to the water trial (35%) (70.8±8.6, 20.3±1.8 μg/ml, P<0.001), run time to exhaustion did not differ (1.86±0.10, 1.91±0.13 h, P=0.775). No trial differences were found for the respiratory exchange ratio (RER) (0.89±0.01, 0.90±0.01, P=0.210), RPE (P=0.917), plasma glucose (P=0.511), or lactate (P=0.308). Significant increases were measured for total leukocytes, plasma cortisol, and cytokines, with no trial differences. In summary, chia seed oil supplementation (10.5 kcal/kg) before and during high-intensity running, increased plasma ALA but did not enhance run time to exhaustion, or influence RER, cortisol, and inflammation responses compared to water alone. Support, Dole Foods, Inc.