Intermittent Fasting: Is It Right for You?

Intermittent fasting is an eating schedule, not a fat loss mechanism. It works for the people it works for because a shorter eating window happens to make them eat less overall, and it fails for everyone it makes ravenous by 7 p.m.

That framing matters, because it tells you whether to bother. If skipping breakfast makes your day easier and your total intake lower, fasting is a useful tool. If it turns your evening into a raid on the kitchen, the schedule is working against you and no amount of discipline will fix that.

What intermittent fasting actually is

It is a set of rules about when you eat rather than what you eat. The common versions:

• 16:8, where you eat within an eight hour window and skip food for the other sixteen. Usually this means no breakfast.
• 5:2, where you eat normally five days a week and eat very little on two.
• A full 24 hour fast once or twice a week.
• Alternate day fasting, which is exactly what it sounds like and which very few people maintain.

None of these tell you to eat vegetables or hit a protein target. They tell you when the kitchen is open. That is all it is.

Why it works when it works

Take away a meal and most people do not fully make up those calories later. Fewer eating occasions means fewer chances to snack, fewer decisions, and a simpler day. For someone who never wanted breakfast anyway, that is a clean win with no white-knuckling involved.

The research on this is reasonably consistent: when total calories are held equal, fasting schedules have not shown a clear fat loss advantage over eating the same amount across the day. Which is another way of saying the window is not doing anything magic. The deficit is doing the work, and the window is one way to get there.

Where it falls apart

We see the same pattern over and over. Someone fasts until noon, feels great for a week, and then starts arriving at their first meal genuinely hungry. Not peckish. Hungry. The portions creep up. Dinner gets big. There is a second dinner around nine. The week's total intake ends up higher than it was before fasting, and they conclude their body is broken.

The other problem is protein. Getting enough protein into two meals is harder than getting it into three or four, and a lot of people fasting are quietly under-eating protein while lifting weights. That combination is a good way to lose muscle along with fat, which is the opposite of what anyone wants.

Training fasted is also worth watching. Some people feel sharp and light. Others have flat, weak sessions and do not connect it to the fact that they last ate sixteen hours ago.

Who it actually suits

Fasting tends to fit people who are not hungry in the morning, who like simple rules, who eat most of their food later in the day anyway, and whose schedule makes a morning meal inconvenient. If you have tried it and it felt easy, keep doing it. Easy is a good sign.

It tends to be a poor fit for people who wake up hungry, who train early, who have a history of restricting and then binge eating, who work physically demanding jobs, or who are trying hard to build muscle. Fasting in those situations often creates the exact problem you are trying to solve.

If you take medication for blood sugar, are pregnant or nursing, or have any history of an eating disorder, talk to your doctor or a registered dietitian before changing your eating schedule. This is one of those areas where general advice is not enough.

What we do instead

We do not use fasting as a default with our clients. Not because it is dangerous for most people, but because it solves one problem while creating harder ones. Our approach is unglamorous: eat in a modest calorie deficit across the day, hit a protein target, eat enough total food that you are not white-knuckling, and train with weights so the weight you lose is mostly fat.

That gives you food when you are hungry, protein spread across meals, and energy for training. It also teaches portion habits you can carry into maintenance, which a fasting window does not. You can read more on why we land here in our post on why fasting is not necessary for weight loss, and see what our structure looks like on the coaching plans page.

If you are curious about fasting, try it for two weeks and track two things: your total intake and your protein. If both look good and you feel fine, it is working. If either one is off, the schedule is not your problem to solve.

Common questions

Does intermittent fasting burn more fat than regular eating?

Not when calories and protein are matched. Fasting helps people who naturally eat less on that schedule, and does nothing for people who do not. Individual responses vary.

Can I build muscle while fasting?

It is possible, but harder, mainly because hitting a protein target in a compressed window takes planning. If muscle gain is the priority, a longer eating window is usually simpler.

Is it bad to skip breakfast?

Not inherently. What matters is your total intake, your protein, and whether skipping it leads to overeating later. Plenty of people do fine without it.

Can I drink coffee during the fasting window?

Black coffee, plain tea and water are generally fine. Adding cream, sugar or a protein shake means you are eating, which is not a disaster, just not fasting.