"Eating for Two" – An Outdated Concept

During pregnancy, the body does not need twice the amount of food. It requires nutritionally and metabolically higher-quality food. Excessive caloric load is associated with gestational diabetes, preeclampsia, macrosomia, an increased likelihood of a cesarean section, and the child's future risk of obesity. Additional energy requirements are as follows: in the first trimester, extra calories are often unnecessary; in the second trimester, approximately 300 kcal are needed; and in the third trimester, approximately 300 to 500 kcal are required. The main focus should be placed on protein, fiber, micronutrients, and glycemic stability. The goal is not to achieve quantitative excess, but to create a metabolically safe environment.

Weight Control – A Clinical, Not an Aesthetic Issue

Weight dynamics during pregnancy are directly linked to the health prognosis of both the mother and the fetus. The recommended total weight gain is 11–16 kg for a normal BMI, 7–11 kg for those who are overweight, and 5–9 kg for those with obesity. These figures serve as a general clinical guideline and require individual adjustment in cases of multiple pregnancies, metabolic diseases, or severe obesity. Optimal dynamics involve an average gain of 300-400 g per week in the second and third trimesters. Rapid weight gain does not always mean fat accumulation. Sometimes it can indicate fluid retention, pronounced edema, insulin resistance, or early signs of preeclampsia.

Fiber – The Natural "Anti-Glycemic Shield"

Consuming vegetables before a main meal reduces the rapid absorption of glucose and promotes a more stable insulin response. The recommended amount is 28-35 g of fiber per day. The best sources include green vegetables, legumes, carrots, flaxseeds, and chia seeds. Fiber improves the gut microbiome, reduces the risk of constipation, helps regulate appetite, and plays a role in preventing gestational diabetes.

Protein – The Main Structural Resource for Fetal Development

Protein is essential for the formation of fetal organs, muscle tissue, hormones, and enzymatic systems. A deficiency may be linked to delayed fetal growth, placental functional weakness, maternal muscle loss, and a weakened immune response. The recommended amount is an average of 75-100 g per day. It is highly desirable to distribute protein-rich foods evenly throughout the day, roughly every 3-4 hours. Quality sources include eggs, fish, lean meat, Greek yogurt, lentils, chickpeas, and tofu.

Folate, B12, Choline, and Iodine – The Biological Architects of the Nervous System

For folate (B9), the recommended amount is 400-600 mcg daily. Taking folate is important not just during pregnancy, but at least one month before conception. The neural tube closes around the 28th day of pregnancy, often before a woman even knows she is pregnant. Folate is crucial for preventing neural tube defects, DNA synthesis, and cell division. Vitamin B12 is especially important for vegetarians and vegans. It is involved in nervous system function, blood formation, and fetal brain development. The recommended amount of choline is about 450 mg daily. Choline is essential for brain development, memory center formation, and nerve impulse transmission. The recommended amount of iodine is around 220 mcg daily. It is crucial for the synthesis of thyroid hormones and the development of the fetal brain and nervous system. Iodized salt remains one of the most effective public health tools for preventing iodine deficiency.

Omega-3 and DHA – The Foundation for Brain and Vision Development

DHA is one of the main structural components of the fetal brain and retina. The recommended amount is 200-300 mg of DHA daily. Safe sources include wild salmon, sardines, anchovies, and high-quality DHA supplements. A reliable vegan alternative is algae-based DHA (Algae Oil), which is the most trusted plant-based source. It is highly recommended to avoid fish with a high mercury content.

Iron, Magnesium, Calcium, and Vitamin D – The Support System for Mother and Fetus

The recommended amount of iron is 27 mg daily. Iron deficiency increases the risk of anemia, chronic fatigue, tissue hypoxia — meaning insufficient oxygen supply to the tissues — and premature birth. Iron absorption improves when taken with Vitamin C, but is hindered by tea, coffee, and high doses of calcium. The recommended amount of calcium is about 1000 mg daily. It is essential for the skeletal system, muscle function, and nerve impulse transmission. The recommended amount of magnesium is approximately 350–360 mg daily. Magnesium is one of the most frequently overlooked yet clinically significant minerals in pregnancy. It aids in glucose metabolism and insulin signaling, muscle relaxation, blood pressure regulation, sleep quality support, and reducing constipation. Key sources include pumpkin seeds, chia, spinach, almonds, black beans, avocado, and dark chocolate. The minimum recommended amount of Vitamin D is 600 IU daily. However, in practice, many pregnant women may need a higher dose, especially in cases of deficiency, excess weight, low sun exposure, or endocrine disorders. The optimal dose should ideally be determined based on laboratory control of 25(OH)D.

Hydration and Metabolic Balance

The need for water increases during pregnancy. The recommended intake is an average of 2-2.2 liters of water daily, depending on individual needs. Adequate hydration is crucial for amniotic fluid, blood volume, placental circulation, metabolic processes, and preventing constipation. It is recommended to limit sweet, energy, and sugary carbonated drinks. The special "detox" effects of "alkaline water" are not convincingly proven within the framework of evidence-based medicine.

Food Safety and Toxin Control

During pregnancy, the placenta is not a complete biological barrier. An infection that is relatively mild for the mother can be associated with severe consequences for the fetus. Special attention is required regarding exposure to listeriosis, toxoplasmosis, and mercury. It is recommended to avoid the following products: raw fish and sushi, raw eggs, undercooked meat, unpasteurized soft cheeses, fish high in mercury, and pre-cooked deli meats or cold cuts. Cultivated mushrooms — such as button, shiitake, and oyster — can be a beneficial source of B vitamins, selenium, and fiber. However, raw mushrooms are not recommended, and it is also best to avoid wild mushrooms during pregnancy. Canned goods are practical, but three factors require attention: BPA (a substance that may affect the hormonal system), high sodium content, and the risk of botulism in the case of damaged cans. Well-rinsed canned legumes can be considered a safe exception.

Caffeine, Alcohol, and Metabolic Stimulants

For caffeine, the safe upper limit is approximately 200 mg daily. Caffeine content varies significantly depending on the preparation method: 1 espresso has about 60-90 mg, while 1 cup of filter coffee contains roughly 120-250+ mg. Excess caffeine may be associated with fetal growth restriction, sleep disturbances, and changes in heart rate. There is no known safe dose of alcohol during pregnancy. Alcohol exposure can be linked to Fetal Alcohol Spectrum Disorders (FASD), nervous system damage, cognitive and behavioral disorders, and developmental delays.

Movement – Natural Metabolic Therapy

Physical activity during pregnancy serves more than just weight control. Active muscles release myokines — bioactive molecules that participate in the regulation of metabolic and inflammatory processes. Physical activity improves insulin sensitivity, reduces inflammatory activity, supports energy balance, and positively impacts the psycho-emotional state. Recommended activities include daily walking, swimming, and light strength or mobility exercises with a specialist's recommendation. The minimum goal is 150 minutes of moderate activity per week.