Feeling constantly hungry and tired often stems from lifestyle factors like poor diet (refined carbs, low protein/fiber), lack of sleep, and high stress, but can also signal underlying issues like anemia, hypothyroidism, diabetes, or sleep apnea, so see a doctor if changes don't help. Improving sleep, eating balanced meals with protein/fiber, staying hydrated, and managing stress are key, but medical tests can rule out conditions like low blood sugar or thyroid problems.
1. Your Diet Is Lacking Nutrients. There's truth to the popular phrase “food is fuel.” Nutrients are essential for the body to function, and a lack of certain nutrients may cause fatigue. Indeed, hunger and fatigue are both side effects of malnutrition, according to the National Health Service.
Causes may include:
Polyphagia (hyperphagia) is a feeling of extreme, insatiable hunger. It's a common sign of diabetes, but it can have other medical causes, such as hyperthyroidism and atypical depression. It's important to see a healthcare provider if you're experiencing polyphagia.
Causes may include cold or flu, stomach viruses, and pregnancy. In most cases, appetite loss and tiredness result from minor illness or a change to a person's diet or sleep routine. However, persistent appetite loss and fatigue may signal an underlying health problem that requires treatment.
Vitamin B12 and folate perform several important functions in the body, including keeping the nervous system healthy. A deficiency in either of these vitamins can cause a wide range of problems, including: extreme tiredness. a lack of energy.
If you're feeling tired and hungry all the time, the cause could be a combination of factors collectively known as adrenal fatigue. Adrenal fatigue is not a true medical condition but rather refers to a group of symptoms that may be related to adrenal gland function.
Ten key warning signs of diabetes include increased thirst and urination, extreme hunger, fatigue, blurred vision, slow-healing sores, unexplained weight loss, tingling/numbness in hands or feet, frequent infections, and sometimes dark skin patches (acanthosis nigricans), all indicating high blood sugar levels needing medical attention.
Symptoms of hyperglycaemia
The 4 Ps of diabetes – polyuria, polydipsia, polyphagia, and sometimes a fourth P – are key signs of high blood sugar. These symptoms have been known for centuries as signs of diabetes mellitus. Learning about the history of these symptoms helps us understand their importance.
Pancreatic cancer can cause diabetes (high blood sugar) because the tumor destroys the insulin-making cells in the pancreas. Symptoms can include feeling thirsty and hungry, and having to urinate often.
Graves disease is an autoimmune disorder that causes the thyroid gland to over-produce thyroid hormone. Symptoms include hunger as well as a rapid heartbeat, sweating, an enlarged neck, and tiredness.
Common Cravings Mistaken for Hunger
Many people with diabetes will describe themselves as feeling tired, lethargic or fatigued at times. It could be a result of stress, hard work or a lack of a decent night's sleep but it could also be related to having too high or too low blood glucose levels.
Adrenal fatigue is a term used by some alternative health practitioners to explain tiredness and other symptoms. They believe these symptoms are caused by chronic (long-term) exposure to stressful situations. Many studies have failed to prove that adrenal fatigue is a medical condition.
Fatigue red flags signal potentially serious issues beyond normal tiredness, including unexplained weight loss, persistent fever, night sweats, shortness of breath, chest pain, severe headaches, confusion, or new neurological/joint problems alongside exhaustion. Other signs include fatigue worsening with activity, significant cognitive/mood changes, or lack of energy despite rest, suggesting conditions like infection, autoimmune disease, heart problems, cancer, or mental health issues, warranting prompt medical evaluation.
Type 2 diabetes is diagnosed with a blood test that checks how high your blood glucose (sugar) levels are. The results usually take a few days. Tests will confirm if you have type 1 or type 2 diabetes. Get advice about what to ask your doctor or other healthcare professional.
Drink more water
“Water helps your kidneys filter out excess sugar through urine,” says Khan. “So, the more hydrated you are, the more urine production you'll have, which flushes out sugar in the body.” Always opt for water instead of sugary drinks, like soda and juice.
Feeling very thirsty. Feeling very hungry—even though you are eating. Extreme fatigue. Blurry vision.
Diabetes often starts with mild symptoms such as feeling very hungry and tired, needing to pee a lot, being very thirsty, having a dry mouth, itchy skin, and blurry vision. Type 1 diabetes symptoms appear quickly and are more severe, while type 2 symptoms develop slowly.
Prediabetes means that your blood glucose, or blood sugar, levels are higher than normal but not high enough to be called diabetes. Glucose comes from the foods you eat.
Digital sclerosis: Some people with Type 1 diabetes develop hardened, thick, waxy skin on the backs of their hands. The finger joints stiffen, making movement difficult.
The 3-2-1 bedtime method is a simple sleep hygiene strategy: stop eating 3 hours before bed, stop working 2 hours before bed, and stop using screens (phones, tablets, TVs) 1 hour before sleep, helping your body transition to rest by reducing stimulants and digestive load for better sleep quality. A more detailed version adds 10 hours (no caffeine) and 0 (no snoozing) for a 10-3-2-1-0 rule.
Idiopathic hypersomnia is a condition that causes people to be very sleepy during the day even after a full night of sleep. People with the condition have trouble waking up from sleep. They also may wake up confused and disoriented.
The 20-minute rule for eating is a mindful eating strategy suggesting it takes your brain about 20 minutes to receive fullness signals from your stomach, so eating slowly, taking at least 20 minutes for a meal, and waiting 20 minutes before seconds helps prevent overeating by aligning consumption with satiety, reducing unnecessary calories, and improving digestion.