Nutrition Guide for the First Trimester of Pregnancy

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The first trimester of pregnancy is a remarkable journey of transformation, filled with anticipation, joy, and the occasional challenge. During these crucial first 12 weeks, your body works tirelessly to nurture your growing baby, laying the foundation for a healthy pregnancy and beyond. Proper nutrition during this phase is not only essential for your baby’s development but also for maintaining your health and well-being.


I am Avni Kaul, a dietitian at Nutri Activania and a specialist in pregnancy nutrition. This guide is designed to help you navigate the complexities of first-trimester nutrition, offering evidence-based insights to keep you nourished, energized, and prepared for the months ahead.

Pregnancy Nutrition For The First Trimester

This falls in the first three months of gestation. From week 1 up to week 13, it is when rapid cell division and organ formation take place. This is when your baby’s major organs begin developing, such as the brain and the spinal cord, among others. A well-fed mother also tends to avoid birth defects, besides staying generally healthy. Nutrients form the pillar of a healthy pregnancy.

Nutrients during the First Trimester

1. Folic Acid (Vitamin B9)

Pregnancy Nutrition | What to Eat in the First Trimester

It helps prevent neural tube defects from developing in the baby.
Food Sources: Leafy greens, citrus fruits, lentils, fortified cereals, and supplements.
Daily Intake: 400–600 mcg.

2. Iron

Pregnancy Nutrition | What to Eat in the First Trimester

Iron can expand blood volume. Mothers need to be more vigilant about preventing anemia in them.
Sources: Lean meats, spinach, beans, tofu, and fortified cereals.
Take iron-rich foods with vitamin C (such as citrus fruits) for higher intake.

3. Calcium and Vitamin 

Pregnancy Nutrition | What to Eat in the First Trimester

These are crucial in the formation of fetal bone and teeth.
Sources: Milk, vitamin D-enriched plant-based milk, almonds, tofu, and sun exposure to generate vitamin D
RDA: 1000mg of calcium and 600 IU of vitamin D

4. Protein

Pregnancy Nutrition | What to Eat in the First Trimester

This is needed in the cell as well as tissue formation.

Sources: eggs, chicken, fish with low mercury levels, nuts, seeds, beans.

For 60 to 70 grams of protein per day.

5. Omega-3 Fatty Acids

Flexitarian diet with fish arrangement  flat lay

Omega-3 fatty acids, predominantly DHA are also critical in fetal brain and eye development
Sources: oily fish, salmon; walnuts; flaxseed; chia seeds.

6. Fiber

Pregnancy Nutrition | What to Eat in the First Trimester

It is going to also help alleviate constipation, the most prevalent symptom occurring earliest in pregnancy so will aid the GI
Sources: whole grains, fruits, vegetables and legumes.

7. Vitamin C

Pregnancy Nutrition | What to Eat in the First Trimester

Vitamin C raises immune functions and supports the absorption of iron from the gut.
Foods: Oranges, strawberries, bell peppers and kiwi.

What to Eat in the First Trimester?

Knowing what to eat in the first trimester is vital for both your health and your baby’s development. Here are the top nutrient-packed foods you should include in your diet.

  1. Whole grains
    Quinoa, oats, and brown rice will provide the body with steady energy and all required nutrients.
  2. Fruits and vegetables
    Vibrant fruits and vegetables are good sources of vitamins, minerals, and antioxidants. Be sure to include a variety of food such as berries, apples, broccoli, carrots, and spinach.
  3. Healthy fats
    Throw in healthy fats like avocados, nuts, seeds, and olive oil.
  4. Hydration
    Hydrate by consuming plenty of water and hydration foods such as watermelon and cucumber.

Diet to Avoid during the First Trimester

  1. Fish with high levels of mercury
    Avoid swordfish, sharks, and king mackerel since they contain a lot of mercury.
  2. Raw or undercooking
    Avoid eating raw eggs, sushi, or any undercooked meat about food poisoning.
  3. Unpasteurized milk and juice
    These might contain listeria, a deadly bacteria.
  4. Caffeine
    Intake of caffeine should be decreased to 200 mg per day to avoid complications.
  5. Processed Foods
    Avoid junk foods and unhealthy snacks with high sugar and saturated fats.

Nutrition for Morning Sickness

Morning sickness is one of the most common symptoms that women experience during the first trimester. Here’s how you can cope with it:

  • Take small, frequent meals during the day.
  • Take plain foods like crackers, toast, or bananas.
  • Add a bit of ginger tea or ginger candies to relieve nausea.
  • Keep hydrated, either through drinking water, broth, or herbal teas.
  • While a balanced diet covers most nutritional needs, certain supplements are often recommended:
  • Prenatal Vitamins: Ensure you’re meeting the daily requirements for folic acid, iron, and DHA.
  • Always consult a healthcare provider or a trusted expert like Avni Kaul at Nutri Activania for tailored advice.

Creating a Balanced Diet Plan


Here is an example of what a day’s diet may look like during the first trimester:

Breakfast:

Avocado and boiled egg on top of whole-grain toast. Orange juice.

Pregnancy Nutrition

Mid-Morning Snack:

Mixing Greek yogurt with some chia seeds and a handful of berries.

Pregnancy Nutrition | What to Eat in the First Trimester

Lunch

Grilled chicken or tofu; quinoa salad with broccoli steamed, served on the side. A small bowl of lentil soup.

Pregnancy Nutrition | What to Eat in the First Trimester

Evening Snack:

Handful of mixed nuts, a bananas.

Pregnancy Nutrition |  Nuts And Bananas

Dinner:

Baked salmon or Chickpea Curry with brown rice and sautéed green.

Pregnancy Nutrition | Pregnancy Diet Plan

Before sleep:

Warm milk with a small pinch of turmeric.

warm milk with a small pinch of turmeric | Pregnancy Nutrition

The Role of Nutri Activania in Pregnancy Nutrition


At Nutri Activania, we prioritize personalized care to meet your unique nutritional needs during pregnancy. From managing symptoms like nausea and heartburn to ensuring optimal nutrient intake, my goal is to provide you with practical, evidence-based strategies that make pregnancy nutrition manageable and enjoyable.


Conclusion

The first trimester is a transformative time for you and your baby, and proper nutrition plays a pivotal role in ensuring a healthy start. By focusing on nutrient-rich foods, staying hydrated, and managing common pregnancy symptoms, you can navigate this exciting journey with confidence.


As a dietitian at Nutri Activania, I am committed to supporting you every step of the way, ensuring you and your baby thrive during this special time. Let’s work together to create a plan that meets your needs, providing the foundation for a healthy, happy pregnancy.

Picture of Avni Kaul: Dietitian & Nutritionist in Delhi NCR

Avni Kaul: Dietitian & Nutritionist in Delhi NCR

Avni Kaul is a leading Dietitian & Nutritionist in Delhi NCR and the Founder of Nutri Activania. She holds a Master's Degree in Food and Nutrition from the University of Delhi and is a Certified Diabetes Educator from Project Hope and the International Diabetes Federation.

Her extensive experience includes serving as a Leicester Mamma's Ambassador, trained in Lactation Counselling with the NHS, United Kingdom.

Ms. Kaul specializes in key areas such as Infant and Young Child Feeding Practices, Pre- and Post-natal Diets, Fat Loss, Muscle Gain, and Holistic Health and Nutrition.

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