What to Eat During IVF in Hong Kong: Dietary Adjustments and Nutritional Supplement Guide for Each Stage

AI Summary

Opening: Real Consultation Scenario Module A: Direct Answer to the Question

Quick Guide to Dietary Points for Each IVF Stage

An IVF cycle in Hong Kong is typically divided into four stages: Down-regulation/Preparation Phase → Ovulation Induction Phase → Post-Egg Retrieval Phase → Embryo Transfer Phase. The nutritional goals and dietary logic differ for each stage. The table below directly answers "what to eat and what to avoid":

Stage	Core Nutritional Goal	Recommended Foods	Foods to Be Cautious With
Down-regulation/Preparation Phase	Improve follicle microenvironment, reduce oxidative stress	Dark leafy vegetables (spinach, kale), berries, whole grains, deep-sea fish (salmon, sardines)	High-sugar desserts, fried foods, excessive caffeine (>300mg/day)
Ovulation Induction Phase	Provide high-quality protein and essential fatty acids to support follicle development	Eggs, lean meat, fish, shrimp, tofu, avocado, nuts, olive oil	Alcohol, excessive red meat, processed foods, unknown "fertility remedies"
Post-Egg Retrieval	Prevent OHSS, supplement protein and electrolytes	Chicken breast, fish, protein powder, coconut water, tomato and egg soup, winter melon soup (low salt)	High-salt foods, soy products (gas-producing), raw cold sashimi, spicy hot pot
Embryo Transfer Phase	Maintain endometrial receptivity, avoid uterine contractions	Warm, soft staples (porridge, soft rice), steamed fish, yam, pumpkin, cooked vegetables, low-sugar fruits	Cold-natured melons and fruits (watermelon, bitter melon), blood-activating ingredients (angelica, chuanxiong), alcohol, undercooked eggs and meat

Module Q: Frequently Asked Dietary Questions

Most Common Dietary Questions from Patients

Q1: Can I eat protein powder during the ovulation induction phase?

Yes. If your daily dietary protein intake is insufficient (e.g., due to poor appetite, vegetarianism, or a busy schedule preventing regular meals), supplementing with a moderate amount of whey or plant protein powder is feasible. It is recommended to start around day 5 of ovulation induction, supplementing an additional 15-20 grams of protein daily, dissolved in warm water or milk. However, do not use protein powder to replace meals, and avoid excessive intake (>40 grams/day) to prevent increasing the burden on your kidneys.

Q2: Can I eat pineapple after embryo transfer?

Pineapple contains bromelain, which theoretically has anti-inflammatory and mild anticoagulant effects. However, there is currently no high-quality evidence to suggest it aids embryo implantation. Hong Kong fertility centers generally do not prohibit moderate consumption (1-2 slices/day), but individuals with sensitive stomachs or a history of miscarriage are advised to avoid unripe pineapple. It is better to choose low-sugar, mild-natured fruits like apples, grapefruit, or blueberries.

Q3: Can I drink Hong Kong-style herbal tea or "24-flavor" tea?

Not recommended. Traditional herbal teas often contain cold-natured Chinese herbs like Prunella vulgaris, honeysuckle, or chrysanthemum, which may affect uterine blood flow and endometrial thickness. During IVF, the body is in a high-hormone state and is more sensitive to cold-natured ingredients. If you feel "heaty," you can drink a small amount of water boiled with Lophatherum gracile or chrysanthemum tea (chrysanthemum morifolium), but it's best to consult your fertility doctor first.

Q4: My stomach is bloated after egg retrieval. What can I eat to relieve it?

Bloating after egg retrieval is one of the early signs of OHSS. At this time, you need high-protein + diuretic foods that do not increase abdominal pressure. Recommended: steamed fish, egg whites, winter melon soup (low oil, low salt), coconut water, millet porridge. Avoid soy products, milk (gas-producing, worsening bloating), and drinking large amounts of water at once (drink small amounts frequently). If bloating persists or worsens, accompanied by decreased urination or difficulty breathing, seek medical attention promptly.

Module B: Why Diet is Important During the IVF Cycle

Why Diet Affects IVF Outcomes

The three core aspects—follicle development, embryo quality, and endometrial receptivity—are all influenced by metabolic status and nutritional supply. Specifically:

• Follicle growth requires amino acids and fatty acids: The development of each follicle depends on sufficient protein and lipids as structural building blocks. A low-protein diet may lead to poor follicular fluid quality, affecting oocyte maturity.
• Oxidative stress directly damages eggs and embryos: Reactive oxygen species (ROS) can destroy the oocyte's spindle structure and embryonic DNA. Antioxidant nutrients (Vitamin C, E, Coenzyme Q10, Selenium) can neutralize some oxidative damage.
• Insulin sensitivity affects hormonal balance: High-sugar diets cause insulin spikes, which can disrupt the fine regulation of FSH and LH, potentially affecting the response to ovulation induction. Stable blood sugar helps maintain endocrine stability.
• Gut microbiota is linked to estrogen metabolism: Dietary fiber helps eliminate metabolized estrogen, preventing its reabsorption which could lead to excessive endometrial proliferation.

In Hong Kong fertility centers, doctors do not require "strict dietary restrictions," but recommend following a Mediterranean diet pattern as a foundation, with adjustments based on individual circumstances.

Module C: The Doctor's Perspective

Fertility Doctors' Real Views on Diet

In clinical practice, doctors focus not on "some magical food that can increase success rates," but on avoiding known risks. The following points are widely agreed upon by Hong Kong fertility doctors:

• Do not take high-dose antioxidants without medical advice: High doses of Vitamin E (>600 IU/day) or Vitamin C (>2000 mg/day) may interfere with the natural signals for follicle development. Supplements should be used under medical guidance.
• Weight management is more important than "what to eat": A BMI >27 or <18.5 significantly affects egg quality and endometrial receptivity. Before starting a cycle, doctors will recommend adjusting your weight to an appropriate range.
• Don't overly pursue "organic" or expensive ingredients: Freshness, hygiene, and simple cooking methods (steaming, boiling, stewing) are more important than the "grade" of the ingredient. The key is to ensure balanced nutrition, not to chase some superfood.
• Individual differences are significant: A diet beneficial for A (e.g., soy products for phytoestrogens) may be detrimental for B (e.g., estrogen-sensitive fibroids or endometriosis). Do not blindly copy others' meal plans.

Module G: The Most Easily Overlooked Details

Four Most Easily Overlooked Dietary Details

1. Choice of cooking oil: Hong Kong households commonly use peanut oil or blended oil, which have a high proportion of Omega-6 fatty acids. It is recommended to partially replace these with olive oil, camellia oil, or flaxseed oil to balance the Omega-3 to Omega-6 ratio and reduce the pro-inflammatory state.
2. Salt intake: After ovulation induction and egg retrieval, hormonal changes increase the tendency for water and sodium retention. Daily salt intake should be controlled below 5 grams, and processed meats (ham, sausage) and sauces should be limited.
3. Regularity of meal times: Irregular eating can disrupt the circadian rhythm of cortisol and insulin. Try to set fixed times for three meals, avoiding prolonged fasting (>5 hours) or eating within 2 hours before bedtime.
4. Method of drinking water: After egg retrieval, fluid intake needs to be increased appropriately, but "gulping down large amounts" can easily worsen bloating. It is recommended to drink 100-150 ml per hour, with a total daily intake of 1.5-2 liters, primarily warm boiled water or light electrolyte water.

Module H: The Most Common Pitfalls

Most Common Dietary Misconceptions

Common Practice	Why It's a Pitfall	Correct Approach
Drinking soy milk or eating tofu daily to supplement estrogen	Soy isoflavones have a bidirectional regulatory effect. For individuals with already high estrogen levels, they may have an antagonistic effect, interfering with ovulation induction medications.	Consume in moderation (one serving of soy product per day is enough), do not deliberately "supplement."
Eating large amounts of fruit after embryo transfer to "supplement vitamins"	Fruits contain fructose; excessive intake causes blood sugar fluctuations, potentially affecting endometrial receptivity. Cold-natured fruits may also induce uterine contractions.	Eat 200-300 grams of low-sugar fruits (grapefruit, apple, blueberries) daily, divided into two portions.
Self-purchasing "fertility soups" or "folk remedies"	Ingredients are unknown, may contain blood-activating or hormone-disrupting Chinese herbs, which can mildly affect the endometrium or severely lead to cycle cancellation.	All Chinese herbs/soup recipes must be reviewed by a fertility doctor or registered Chinese medicine practitioner.
Dieting or following a low-fat diet to control weight	Fat is a precursor for sex hormone synthesis. Severely low-fat diets can lead to insufficient estrogen synthesis, affecting follicle development and endometrial growth.	Consume high-quality fats (nuts, fish oil, olive oil), keeping the daily fat energy contribution at 20%-30%.

Module D: Dietary Differences by Age Group

Dietary Focus for Different Age Groups

Egg quality and metabolic status change with age, so dietary strategies need to be adjusted accordingly:

• Under 35 (Normal Ovarian Reserve): Focus on maintaining metabolic health and antioxidant reserves. Increase dark leafy vegetables and low-GI staples, avoiding high-sugar, high-fat diets that can affect follicle development. This age group has a lower reliance on nutritional supplements.
• 35-38 years old (Declining Ovarian Reserve or Low AMH): On top of a balanced diet, consider supplementing with Coenzyme Q10 (200-300 mg/day) and Vitamin D (2000 IU/day, after testing blood levels). Also, pay attention to increasing high-quality protein intake to improve follicular fluid quality.
• 39 years and older (Advanced Age or Poor Ovarian Response): Diet needs to be more precise. A Mediterranean diet pattern is recommended, and assess the need for DHEA (requires doctor's evaluation), melatonin (to improve oocyte quality), and injectable antioxidants. This age group should avoid high-sugar and processed foods due to an increased risk of insulin resistance.

Hong Kong fertility centers usually provide personalized nutritional advice for older patients, and some centers have dedicated nutrition clinics for more detailed metabolic assessments.

Module R: Practitioner Observations

Practitioner Observations: Four Characteristics of IVF Diet in Hong Kong

As a fertility doctor practicing in Hong Kong for many years, I have observed four prominent phenomena among local patients when dealing with "what to eat during IVF":

1. Over-reliance on "soup culture": Many patients believe that "drinking the right soup can nourish the follicles," but in reality, the nutritional content in the soup is far lower than in the solid ingredients. Drinking soup is fine, but eating the meat and vegetables is more important.
2. Neglecting the impact of takeout food: Hong Kong's fast-paced lifestyle means a high proportion of takeout meals. Takeout is generally high in salt and oil and very low in vegetables. If you must eat takeout, order a side of blanched or steamed vegetables and bring your own small portion of fruit.
3. Excessive anxiety over the concept of "cold-natured" foods: Some patients, worried about foods being "cold-natured," only eat "hot-natured" foods (beef, lamb, ginger), leading to mouth ulcers, constipation, or even fluctuations in their response to ovulation induction. The concept of "hot and cold" in Traditional Chinese Medicine needs to be considered in the context of individual constitution and should not be applied rigidly.
4. Ignoring water quality: Tap water in Hong Kong has a high chlorine content. Some patients long-term consume bottled or distilled water, which may lack minerals. It is recommended to use a water filter pitcher and then boil the water for drinking to ensure mineral intake.

Ending: Doctor's Advice