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High volume of aerobic exercise has an effect on increasing of lactic level, reduce pH and affected to the physical performance due to fatigue or physical stressors. Consuming alkaline fluids and has a sufficient composition of nutritional elements was considered be able to inhibit the increasing of lactic acid level as well as decreasing pH levels in the blood after high intensity aerobic exercise. Purpose: to identiy the effect of nutritional status and alkaline to endurance capacity and reversibility process that occur due to high volume of aerobic exercises. Methods: Purposive random sampling was conducted for 30 male-s middle distance runner (age 18.2±1.3 yr; BMI 21.1 ±3.1 kg, RHR 75.2±13.4bpm, lactic 3.2±1.1mmol/l) and performed interval intensive of 100m (80%-90%, 91%-100% of MHR) for 30 mins (3 sets in 10 reps, rest 3 mins). 1x24 hours food recall, PAR-Q, informed concern was conducted for pretest and provide research group determination. Results: Pearson shows, there were significant correlation between carbohydrate intake level and alkaline water of pH 9 to endurance level (p=0.018, r=0.522), between protein intake level and pH 9 to endurance level (p=0.011, r=0.556) and fats intake level and pH 9 to endurance level (p=0.623, r=0.551). There were differences level of lactic acid after it analyzed using different test (t-test), it was obtained p 0.000 <0.05. While the variance of pH level, protein, fats and carbohydrate intake had significant correlation with value p 0.000 <0.05 between the control group and the experimental group after the treatment with interval extensive exercise. Conclusion: It was concluded that having carbohydrate needs as well as fats on normal level and consuming of alkaline water of pH 9 before, during and after high intensity aerobic exercise inhibits the increasing of lactic acid and inhibits decreasing of pH blood.