Isostar Long Energy Lemon 570g

Description

Isostar Long Energy Isotonic Sport Drink is designed for endurance athletes such as trail runners, hikers, cyclists, marathon runners, and triathletes.

Product Strength

• 31 g of carbohydrates per 500 ml serving: A 2:1 glucose–fructose ratio combining simple and complex carbohydrates to increase absorption and uptake by the muscles.
• Essential electrolytes and vitamins: Provides potassium, calcium, magnesium, sodium, and vitamins C, E, B1, B2, PP (niacin), B5, and B6, contributing to energy metabolism, fatigue reduction, and cellular protection.
• Neutral pH (6–7): A non-acidic drink designed for improved digestive tolerance.
• 1 g of BCAAs per 500 ml serving: Contributes to the intake of essential amino acids involved in protein synthesis, particularly muscle protein synthesis.
• Lemon flavour: A light taste designed to limit flavour fatigue.
• Granular technology: Fast-dissolving, non-dusting powder for precise and controlled preparation.
• Clean formula: Natural flavours, free from sweeteners and colourings.

Expected Results

• Optimal hydration*: Thanks to its isotonic formula, it helps support adequate hydration during physical activities.
• Energy intake: Each serving contributes 31 g of carbohydrates and can be combined with other Long Energy products to meet overall energy needs.
• Support before and during exercise: Can be consumed around 30 minutes before physical activity and then regularly during exercise (approximately 500 ml = 1 bottle per hour).

Science at the heart of our formula

• 2:1 glucose–fructose ratio: Promotes efficient carbohydrate absorption and helps achieve an intake of 60 to 90 g of carbohydrates per hour. This is made possible by an adapted distribution of glucose and fructose, using separate intestinal transporters (SGLT1 and GLUT5).
• BCAAs (2:1:1 ratio): Leucine, isoleucine, and valine complement the intake required for muscle protein turnover during prolonged exercise.
• Electrolyte diversity: Sodium (560 mg), potassium (334 mg), magnesium (87.4 mg), and calcium (190 mg) help compensate for losses due to sweating.
• Vitamins B, C, and E: Vitamins C and E protect cells against oxidative stress. B vitamins contribute to normal energy-yielding metabolism.

FAQ

What does the BCAA 2:1:1 ratio mean?
The 2:1:1 ratio describes the distribution of the three essential amino acids: two parts leucine, one part isoleucine, and one part valine. It reflects a natural proportion found in dietary proteins, placing particular emphasis on leucine, a key amino acid involved in protein metabolism.

What is the 2:1 glucose–fructose ratio?
A 2:1 ratio means the formula contains two parts glucose/maltodextrin to one part fructose. This combination optimises absorption by using two complementary intestinal transporters (SGLT1 and GLUT5), allowing carbohydrate absorption rates up to approximately 90 g per hour without saturating a single transporter.

How can I gradually train my body to tolerate a higher carbohydrate intake? (Advice from Sylvain Court, world trail running champion)
“I started very low—around 30 g per hour—then progressively increased to 60 g, 70 g, and finally 80-90 g per hour. The 2:1 glucose-fructose ratio helps optimise carbohydrate absorption while limiting the risk of digestive discomfort. I alternate between bars, gels, and energy drinks, which allows me to maintain a steady intake.”

How much should I prepare for a 3-hour or 4-hour session?
As a general guideline, prepare around 500 ml of isotonic drink per hour of exercise. (3 hours → approx. 1.5 L, 4 hours → approx. 2 L). Adjust the volume according to thirst and conditions.

* Carbohydrate-electrolyte solutions contribute to the maintenance of performance during prolonged endurance exercise and enhance water absorption. To be consumed as part of a varied and balanced diet and a healthy lifestyle.