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Beta cells of the pancreas.
Insulin is a peptide hormone that regulates carbohydrate and fat metabolism in the body. Insulin causes cells in the liver, skeletal muscle and fat tissue to absorb glucose from the blood. Insulin also stops the use of fat as an energy source by inhibiting the release of glucagon. It is also a powerful anabolic hormone as it controls the uptake of amino acids by muscle cells and decreases proteolysis and gluconeogenesis – the breakdown of protein for glucose production. Other functions include the increase of DNA replication and protein synthesis via the control of amino acid uptake and the modification of the activity of numerous enzymes.
Ensure optimal function by:
Consuming meals that have a low glycaemic load (GL).
Consuming protein-rich meals and protein supplements with a high glycaemic index (GI) carbohydrate source when insulin levels are at their highest (after training and first thing in the morning).
Eat foods that are as close to their natural state as possible (i.e. avoid highly processed foods).
Eat meals with the correct macronutrient combinations to manage insulin levels and lower the GL of your meals.
Supplement with cinnamon-based blood sugar regulators.
Insulin and glucagon are part of a feedback system that keeps blood glucose levels at a stable level.