Can I drink pre-workout (nitric oxide booster) on an empty stomach in the morning?

Nov 24, 2022 Source: Cainiu Health

Dr. Yang Shuwen

Introduction

Do not take pre-workout supplements on an empty stomach in the morning; it is recommended to use them before exercise. Pre-workout supplements contain ingredients such as caffeine, arginine, and alanine. Taking them on an empty stomach may allow caffeine to adversely affect absorption in the body. Pre-workout supplements should not be used for prolonged periods. Overuse can cause nausea, gastrointestinal discomfort, vomiting, muscle cramps, and may also lead to central nervous system disturbances.

Do not take pre-workout supplements (nitric oxide boosters) on an empty stomach in the morning; it is recommended to use them before exercise. These supplements contain ingredients such as caffeine, arginine, and alanine. Taking them on an empty stomach may allow caffeine to adversely affect absorption in the body.

The main ingredients in pre-workout supplements are caffeine and alanine. Named for their ability to help fitness enthusiasts achieve a better muscle pump, these products work by increasing heart rate, enhancing focus during training, and reducing fatigue. Pre-workout supplements should be taken within 30 minutes before exercise and can be consumed with either warm or cold water to maximize effectiveness—though optimal timing depends on individual workout routines and physical condition. Containing substances such as coffee bean extract, black pepper, and B vitamins, taking these supplements before exercise helps elevate blood concentration levels, thereby improving nutrient delivery and efficacy.

Pre-workout supplements should not be used long-term. Overuse may lead to nausea, gastrointestinal discomfort, vomiting, muscle cramps, and could also cause central nervous system disturbances or even neurological dysfunction.

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