1. Advantages of weight loss in summer: The metabolic window period helps efficiently control weight

2. Definition of obesity and reproductive effects: Medical standards and clinical evidence 1.

Fat determination standard (BMI of Asian adults = body weight (kilograms) ÷ the average square of body height (meters)) t Classification n Health risks Low body weight t

t t Heavy t The number of oocytes retrieved is reduced by 20% t Fat Fat 2.

  Mechanism of negative effects of obesity on test tubes

Reducedegg qualityInsulin resistance and chronic inflammation lead to an increase in the empty egg rate and a decrease in the fertilization rate

Impairedadipokines in the endometrium reduce the blood flow of the endometrium by 50%, and increase the failure rate of embryo implantation

Increased operating risk accumulationof abdominal fat increases the difficulty of anesthesia for egg retrieval and the probability of postoperative infection.

Clinicaldata: The cancellation rate of ovulation promotion cycles for people with BMI>24 is 37% higher than that for people with normal weight.

3. Scientific diet strategy: nutritional structural adjustment plan

1. Core principles

Calories controldaily intake ≈ basic metabolism ×0.8, create a gap of 300 - 500kcal

Nutrient ratioProtein 30%-35% + Fat ≥30% + Low-Carbon Water (low-GI staple food).

2. Three major nutrient optimization plansClass  Recommended foods n High protein Repair ovarian tissue

Olive oil Maintain estrogen stability, Reduce inflammatory response oats, Quinoa and sweet potatoes Stabilize blood sugar and reduce fat synthesis 3.  Summer recipe reference (1500 - 1800 kcal/day)
Breakfast: whole wheat toast + boiled eggs + cold spinach (protein + dietary fiber)  Lunch: Steamed chicken breast 150g + miscellaneous rice 100g + broccoli (controlled amount to fill your stomach)
Dinner: Steamed cod + tomato tofu soup (light, low load) Add meals: sugar-free yogurt/protein 2/low-sugar fruit (such as apples).
 
 
Taboo: high-sugar fruits (watermelon, grapes), fried foods, ice drinks (easy to induce uterine contractions). 
IV. Sports and Behavior Management: Key Measures for Synergy  Exercise plan
Aerobic exercise: brisk walking/swimming, 5 times a week × 30 minutes (maintain heart rate at 120 - 140 beats/minute)  Resistance training: Elastic band/dumbbell, twice a week (improves basal metabolic rate by 10%-15%).
 
 
Life optimization  Sleep management: Ensure 7 - 8 hours/night and regulate leptin secretion
Stress management: Meditation/yoga reduces cortisol and avoids emotional eating  Progress monitoring: Weight loss of 0.5 - 1 kg per week, and if more than 1.5 kg, you need to be vigilant about muscle loss.
 
 
5. Clinical goals and risk management and control  Weight loss goal: 5%-10% of initial weight loss in 3 - 6 months (e.g. 3.5 - 7 kg from 70 kg)
Couples collaborate: When men have BMI> 30, sperm DNA fragmentation rate (DFI) increases by 40%, requiring simultaneous management  Medical support: People with BMI ≥ 28 or combined with insulin resistance need to combine a customized plan with the reproductive department and nutrition department.
 
 
Expert consensus: Weight loss by 5% can improve insulin sensitivity, improve egg mitochondrial function, and lay the foundation for long-term health of mother and infant. 
Execution prompt: Individual differences require personalized plans. Please have your doctor evaluate the weight loss plan before the test tube cycle.