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The Macro-nutrients

The macro-nutrients are the 3 main food groups from which we get our energy. They make up the bulk nutrients in all of our meals, with little vitamins and minerals (micro-nutrients) dotted between. Behind each link you will find specific information on their structure, role and how they are processed within the body, which I will aim to constantly update whenever I find out something new or interesting or even if there is anyway I can improve the fundamental knowledge of each. Knowing the basic principles behind each macro will only further your understanding of all aspects of nutrition, as they will be applied to any new theory or diet because, at the end of the day, they are what they are. So getting down to it; here are your 3 macro- food groups.

Carbohydrates

Our main source of energy, carbs should make up about 60% of diets when taking into account fruits, vegetables, grains and other starchy foods.

Basic Biology 101: Carbohydrate Structure

Basic Biology 101: Energy From Respiration

Regulation of Blood Glucose: Insulin and Glucagon

Respiration (Advanced):

Gluconeogenesis 

Monosaccharide Naming + Structure

Polysaccharide Biochemistry (Starch-Glycogen-Cellulose)

Fiber: Insoluble, Soluble and Pre-Biotics

 

Proteins

A large focus within the fitness world of nutrition, proteins are split into two categories: Structure and Function. Excess protein does not equal excess muscle growth, but it can mean a couple of over-worked kidneys.

Basic Biology 101: Protein Structure

Protein Synthesis (Gene Expression)

Gene Mutation (and Expression)

 

Fats

Fat is not the enemy! In these posts we will see the risks associated with a high fat diet, but we will also see that it is not the only macro that can cause an increase in body fat and that it is more important than people think to meet their required daily amount.

Basic Biology 101: Lipid Structure

Active Fat

Basic Biology 101: Cell Membranes

β-Oxidation: Using Fat for Fuel

Fatty Acid Synthesis

Ketones: Back-Up Brain Food

 

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