North Star Theory

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Showing 1 to 12 of 36 articles · Most recently verified first

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Are eggs bad for your cholesterol?

Last verified

For most healthy people, no. Up to about one egg a day is not linked to higher heart disease or stroke risk in large studies. Eggs nudge blood LDL up a little, but the net effect is small. The bigger issue is what you eat with them, a fry up is not 'an egg'.

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Can you build muscle and lose fat at the same time?

Last verified

Yes, gaining muscle while losing fat is real and documented. It works best for people newer to training or carrying more fat who eat plenty of protein, train hard, and keep any calorie deficit modest. For lean, experienced lifters it is slow, and focused gain then lose phases can be more efficient.

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Can you out train a bad diet?

Last verified

For weight, mostly no. Exercise alone shifts about 2 kg on average, less for many; the body partly compensates and total energy burn plateaus, and a session's calories are eaten back fast. Diet sets the deficit. Exercise still matters for keeping weight off and for health regardless of the scale.

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Can you spot reduce fat? (Do ab exercises burn belly fat?)

Last verified

No. Two direct randomised trials, one training a single arm, one doing daily ab exercises on a steady diet, both show training a region causes generalised fat loss, not local. Where you lean out first is genetics and sex; visible abs come from lower overall body fat, not crunches.

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Can your body only absorb 30g of protein per meal?

Last verified

No. Your gut absorbs almost all of it, just more slowly for a big dose, and the muscle building response keeps rising with larger doses rather than stopping at a set number. What drives muscle gain is total daily protein, about 1.6 g/kg; splitting it across 3 to 4 meals is a habit, not a rule.

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Do fat burner supplements work?

Last verified

Mostly no. 'Fat burner' is a marketing label. Only caffeine has evidence for a small effect, and you can get it from coffee; other ingredients have weak or no support. The stimulant load and rare liver injury risk are real. Fat loss comes from a calorie deficit.

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Do light weights tone and heavy weights bulk?

Last verified

No. 'Tone' is not a training style, it is visible muscle at lower body fat. Taken close to failure, light and heavy loads build muscle to a similar degree; heavier loads mainly build strength faster. 'Bulk' takes years of overload and usually a surplus, so it does not happen by accident.

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Do you need a pre workout supplement?

Last verified

A pre-workout supplement is not a requirement for training. Evidence about one ingredient or one formula does not establish the value or safety of every blend. This article does not recommend replacing a blend with caffeine tablets or copying research doses.

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Do you need BCAA supplements?

Last verified

No. BCAAs are 3 of the 9 essential amino acids and cannot maximise muscle building alone; a review calls the anabolic claim 'unwarranted'. They raise synthesis about 22%, far less than whole protein, and add nothing on top of adequate total protein. For almost everyone they are poor value.

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Do you need carbs to build muscle?

Last verified

No. When protein and total calories are adequate, low carb and even ketogenic diets build similar muscle and strength to higher carb diets. Carbs mainly make hard training easier; strict low carb often causes an unintended calorie deficit, and it is the deficit, not the carbs, that costs muscle.

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