Low blood sugar (hypoglycemia) definition and facts. 1  Hypoglycemia is the medical term for low blood sugar. 2  The normal range of blood glucose is from 70 to 100 mg/dL in an individual without diabetes, 3  Most people will feel the effects and symptoms of low blood sugar when blood glucose levels are lower than 50 mg/dL.
Find out the facts! The Truth: You should always eat something before exercising so your body has enough fuel to power through your workout. The rationale behind this widely accepted myth is that forgoing food before exercise will force your body to burn more fat during your workout.ind out the facts! The Truth: You should always eat something before exercising so your body has enough fuel to power through your workout. The rationale behind this widely accepted myth is that forgoing food before exercise will force your body to burn more fat during your workout.
No relation with lunch , as such because lunch you will be having in afternoon and gym in evening. But if you are eating again before workout like carbs / pre workout stuffs etc it would be good to have 30 - 45 mins gap after eating. Reason is some people feel nauseous because the metabolic activity plus physical activity and high heart rate. To be on safer side have some thing before gym but a 30 mins gap will be good enough.