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What is L Leucine?

L Leucine is largely considered the amino acid responsible for protein synthesis (muscle growth) and can be used directly by the body for energy when under stress. It is the main factor supporting muscle conservation while exercising with minimal calorie intake. It has also been shown to assist regulating blood sugar levels reducing cravings which is very beneficial when dieting.

What are the Benefits of L-Leucine?

  1. Maintains muscle mass with limited calorie intake

  2. Aids the body when under stress

  3. Regulates blood sugar levels, reducing cravings

Who is L-Leucine suitable for?

Anyone dieting or with a limited calorie intake will benefit from L-Leucine as it stops the body craving extra calories and assists in blood sugar regulation. It is the main skeletal muscle builder of the amino acids and is essential to maintaining muscle mass and encourage growth, thus anyone wishing to increase size and recovery will benefit from L-Leucine.


As with all Bulk Nutrition products, this product is sourced directly from a BULK NUTRITION approved supplier. All our suppliers are rigorously audited to ensure that they meet our high standards and we routinely test products as part of our internal quality control procedures. We only work with the best Australian suppliers to guarantee our consistent quality.

In addition, all Bulk Nutrition products are packed in our very own, state of the art production facility that is operated to standards above and beyond our competition. This all combines to ensure that we deliver only the highest quality products to you, but, as always, at fantastic prices.

Disclaimer: Implied results may vary. Individuals will respond differently. Implied results assume an appropriate nutrition and training plan.


Consume 2g of L Leucine with 250ml of water and consume once or twice daily. Can be consumed pre, during or post training, can also be added to smoothies and consumed throughout the day.


The product is useful before, during or after sustained strenuous exercise 

Use in conjunction with an appropriate physical training or exercise program.

Not suitable as sole source of nutrition and should be consumed in conjunction with a nutritious diet.

The product may assist in supplementing the diet with a high energy source as may be required during training.  Consume in accordance with directions and make sure an appropriate fluid intake is maintained.  Store in a cool dry place below 30degrees Celsius and away from direct sunlight.  Not suitable for children under 15 years or pregnant women.