Is it wrong to skip a "meal"?

I have breakfast every day, but occasionally I’m too busy physically working to eat lunch. Sometimes it feels like a success because I have more calories for later, but is it okay to eat fewer some days to build calorie deficit, or would that disrupt metabolism?

Yes, skipping meals is perfectly OK! There are no “critical” meals and no “critical” meal times. When everything is working properly, the body self-regulates quite well, and this self-regulation occasionally manifests itself in the absence of hunger.
Not eating when you aren’t hungry is absolutely healthy and appropriate, as long as it isn’t habitual.
Doctors encourage patients to fast for brief periods of time before to some medical operations. It is completely healthy.

Skipping a meal may cause muscle loss, so don’t do it too often.

No, just relax. Yes, I am a Dietitan. People have varied needs. If you are not hungry around lunchtime, do not eat. It’s that simple, and don’t let anyone tell you otherwise.

Meals are regarded to be an essential component of the day. Particularly our morning breakfast. A king-size breakfast is considered a nice and nutritious start to the day.
So skipping a meal every now and again is fine, but it all depends on which meal you’re skipping. Skipping breakfast can have a negative impact on your body, and even after eating, you may feel unsettled and develop headaches.
Skipping lunch can sometimes be acceptable because you end up eating some or the other snack or anything you find around as a quick snack, but this has a major impact on you.

No, it is not usually a good idea to miss meals. It’s also not a good idea to replace a meal with a sugary snack.
Skipping a meal might lead the body to react in a deprivation-like manner. So, the next time you eat, your body will likely try to store those calories as fat. In other words, starving the body of essential nutrients might cause the metabolism to slow down, limiting its ability to efficiently handle the next intake of nutrients.

Not at all! I skip my seventh and fifteenth meals every day with no negative consequences!
Seriously, eat full, natural foods. Do not eat too much. Listen to your body.

Some people practise eating three meals every day, but do so early in the day. My schedule includes 6 a.m., 11 a.m., and 2 p. I haven’t tried it, but if these meals fit your daily macronutrient requirements while not depleting your vitamins and minerals, I wouldn’t be opposed to them. Those who practise this believe in a daily 16-hour fast and have claimed benefits from it.

Fasting, even intermittent fasting, has been shown repeatedly to be extremely beneficial to one’s health. Our bodies are meant to go without food for extended periods of time, therefore going a few days without eating is entirely acceptable. On the other hand, it is not recommended to do so all the time, so make sure that if you skip a meal, you do not skip the next. Also, consider your weight and health; if you are of normal weight and do not have any ailments, you may skip meals. Even if it’s only for a few days, make sure to eat normally for a few days before trying it again. Humans used to withstand winters with little food due.

The outcomes of this practice are not favourable. First and foremost, disordered eating behaviour can only exacerbate the issue in the diet and, over time, worsen it; skipping meals is thus extremely harmful. Second, depending on whether it is breakfast, lunch, snacks, or supper, omitting the foods that are generally consumed at that time can likely favour a specific nutritional imbalance; we will attempt to clarify why below.

Not at all.
I’ve been doing this for years.
Now, if you combine skipping dinner with insufficient nutrition for your other meals, the problem is inadequate nutrition rather than skipping dinner, and you should focus on acquiring adequate nutrition in your meals rather than just eating more.

Skipping occasional meals may not result in long-term weight loss and can have a detrimental impact on metabolism and energy levels. Instead, concentrate on developing a balanced and sustainable eating pattern. Consuming smaller, nutrient-dense meals throughout the day can help decrease appetite and keep energy levels stable. Consulting with a nutritionist or healthcare professional can provide personalised advice on meal timing and frequency based on individual needs and preferences.

No. There is no single ideal meal routine. Lunch is an arbitrary term that refers to a noon meal. If you are not hungry, you should not eat. Not an issue. There is nothing remarkable about three meals every day.

Skipping meals (contrary to the knee-jerk, emotional reactions of some who have sadly succumbed to media brainwashing mostly supported by big agriculture and food corporations) is completely safe and healthy for the great majority of people. If you have persistent health problems, see a holistic practitioner who collaborates with a nutritionist.