Question 1

What are macros, and does the split between them matter?

Accepted Answer

**Macronutrients** — protein, carbohydrate and fat — are the three components of food that provide energy. "Tracking macros" means recording how much of each you eat rather than only total calories.

**What each does:**

**Protein** supplies amino acids for building and repairing tissue, including muscle. Also the most **satiating** per calorie and the most expensive to digest.

**Carbohydrate** is the body's most readily available energy source, and the primary fuel for high-intensity exercise via muscle glycogen.

**Fat** is essential for hormone production, cell membranes and absorbing fat-soluble vitamins. Some fatty acids are **essential** — the body cannot make them.

**Alcohol** is technically a fourth energy source, providing calories and nothing else.

**What the evidence actually suggests about the split:**

**For weight change, total energy dominates.** Controlled trials comparing low-carbohydrate and low-fat diets with matched calories and protein have repeatedly found **similar outcomes**. Where free-living studies show differences, adherence and satiety usually explain more than metabolism.

**Protein is the exception where the amount genuinely matters.** Adequate protein preserves lean mass during weight loss, supports training adaptation, and increases satiety — so the same calorie intake produces a different body composition outcome. This is the one macro worth setting deliberately.

**Carbohydrate matters for performance**, particularly for high-intensity and endurance work, where glycogen availability is limiting. An endurance athlete on a very low-carbohydrate diet is accepting a performance cost.

**Fat has a floor.** Going very low impairs hormone production and vitamin absorption.

**Beyond that, the split is largely a preference and adherence question** — and adherence is the variable that actually predicts results, so the best split is frequently the one you can sustain.

**What macro tracking misses:** micronutrients, fibre, food quality and processing level. A diet hitting perfect macros on entirely ultra-processed food is not equivalent to one built on whole foods.

**Fibre is worth tracking separately**, and most people fall well short.

General information, not dietary advice — individual needs vary and medical conditions change the picture.

Question 2

Does fasted cardio burn more fat?

Accepted Answer

It burns a higher proportion of fat during the session, and this does not translate into greater fat loss over time. The distinction between substrate use and fat loss is where the entire claim falls

Question 3

Is a calorie on a label the same as a calorie your body gets?

Accepted Answer

No — the label is a reasonable estimate, not a measurement of what you absorb, and several factors mean the number on the packet and the energy your body extracts differ. How labels are calculated.

Question 4

What should a beginner include in a keto diet meal plan?

Accepted Answer

A beginner's keto diet meal plan should include healthy fats, low-carb vegetables, moderate protein, and wise snack choices to promote ketosis and overall health.

Question 5

What are the best supplements for fat loss?

Accepted Answer

Effective fat loss supplements include caffeine, green tea extract, protein powders, and more. They work by boosting metabolism and reducing appetite. Always consult a healthcare professional before use.

Question 6

What is the difference between aerobic and anaerobic exercise?

Accepted Answer

The distinction is which energy system dominates, and that depends on intensity and duration rather than on the activity itself. Aerobic means "with oxygen". At moderate intensity, your body meets

Question 7

What are the basic principles of the keto diet for beginners?

Accepted Answer

The keto diet is a low-carb, high-fat diet that induces ketosis, where the body burns fat for fuel. Key principles include macronutrient ratios, carbohydrate restriction, and healthy fats.

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