- If you’re always feeling tired, struggling to focus, or not improving in your workouts, you may not be eating enough.
- Insufficient nutrition can cause nutritional deficiencies, digestive problems, insomnia and stress, compromising health and daily energy levels.
- To maintain performance and well-being, listen to your body, eat nutritious foods, do not skip meals, and consult a nutritionist if necessary.
Many people, especially endurance athletes like runners, tend to underestimate the importance of proper nutrition. By “proper”, we don’t just mean qualitatively speaking, but also quantitatively: eating too little doesn’t just limit your energy but can also harm your health and performance.
When your body doesn’t get enough calories and nutrients, it goes into “survival mode,” reducing energy expenditure. This can lead to increased cortisol, the stress hormone, which negatively affects mood, sleep, and metabolism. Additionally, vitamin and mineral deficiencies can cause fatigue, difficulty concentrating, and increased susceptibility to seasonal illnesses.
But how can you tell if you’re eating enough? Here are five signs you shouldn’t ignore.
1. You’re always tired
Food is our body’s fuel: if you’re not consuming enough calories, your body will prioritize only vital functions, leaving you drained for everything else. If you feel completely exhausted after a workout or struggle to get through daily tasks, you may need to increase your calorie intake.
2. You’re not making progress in training
If you train consistently but don’t see improvement, the problem may be in your diet: without enough carbohydrates you will lack energy, and without enough protein your body will not be able to rebuild muscle and improve performance. If you feel weaker, struggle more than usual, or have hit a plateau in your progress, it might be time to reassess your diet.
3. You have digestive issues
Constipation can be a sign of a low-fiber diet, so you’re probably not getting enough fruits, vegetables, and whole grains, which are critical for gut health. Dehydration can also play a role, so be sure to drink enough water throughout the day.
4. You struggle to focus
Our minds need energy as much as our bodies do. If you often feel confused, distracted, or have difficulty concentrating on work or study, you may be in a calorie deficit or have a deficiency of essential micronutrients such as iron and vitamin B12.
5. You have trouble sleeping
It sounds like a paradox, but eating too little can negatively affect sleep. When the body does not have enough energy, it can produce more stress hormones, making it difficult to relax and fall asleep. In addition, a diet too low in carbohydrates can reduce the production of serotonin, the hormone that helps regulate sleep.
How to make sure you’re eating enough
There is no perfect number of calories that applies to everyone because requirements vary according to age, gender, physical activity level, and metabolism. However, some simple strategies can help you:
- Listen to your body: if you are hungry, eat! Ignoring hunger signals can lead to problems in the long run;
- Choose nutrient-rich foods: prioritize vitamin and mineral rich foods like fruits, vegetables, lean proteins, and whole grains;
- Don’t skip meals: eating regular, balanced meals helps keep energy levels stable;
- if you have doubts, consult a nutritionist who will help you find the right balance to cope with the training load and preserve your health.
Eating enough doesn’t mean overeating, but rather giving your body the right fuel to function at its best. If you recognize any of these signs in yourself, try slightly increasing your calorie intake and improving the quality of your diet. You’ll feel more energetic, stronger, and healthier!