Impact of obesity on fertility
For women, being overweight adversely impacts fertility by causing hormonal imbalances and hence missing ovulation cycles. The fat cells produce weak estrogen called estrone, which communicates with the part of the brain controlling the normal cycles, tricking the brain into thinking that it is not yet time for another cycle. This progressively reduces the number and predictability of ovulation cycles. For highly overweight men, on the other hand, obesity affects fertility, libido, energy levels and the sperm quality, impacting the ability to help their partner conceive. Therefore, with reduced and untimely ovulations and with partner’s poor libido and poor-quality sperms, the chances of conceiving naturally are drastically reduced.
Normal pregnancy for overweight mothers generally increases risk of miscarriage, pre-eclampsia, gestational diabetes, infection, blood clotting, stillbirth or need for induction of labour or a caesarean birth.
“ We treat women with a BMI up to 35 but we would advise you about how your weight can negatively affect your outcome, as part of our 'whole body' approach.”
Impact of low levels of AMH
Anti-Mullerian Hormone (AMH) is a protein hormone, found in females, produced by cells within the ovary and indicating the ovarian egg reserve and therefore fertility of the woman. AMH levels are, mostly very low in women over 40 or in very highly overweight women. Those with very low AMH levels are unlikely to respond well to the drugs involved in conventional IVF.
How do we define Obesity/overweight’?
For adults, overweight and obesity ranges are determined by using weight and height to calculate a number called the “body mass index” (BMI). BMI is used because, for most people, it correlates with their amount of body fat.
BMI Calculation
BMI is calculated by the following formula: BMI=Weight in kg/ (Height in meters)
We at Ankoor Fertility clinic directly calculate the fat percentage of a patient depending upon the height and weight with a relatively newer type of machine. This differentiates patients who are overweight because of their bone mass and patients who are overweight because of their fat. The interpretation is note on patients file and accordingly diet and exercise instructions are given.


What can women do?
First line treatment for obesity-related infertility is weight loss and lifestyle modification. While any amount of weight loss in obese women may improve fertility, a loss of 5 percent to 10 percent in overall body weight can result in spontaneous ovulation in 60 percent of patients. Efforts should be made to restrict calories to 1000 to 1200kcal/day, and to exercise at moderate intensity for at least 30 minutes, three times a week. Participation in a formal weight loss program can be very helpful.
Apart from weight loss, treatments for infertility in obese women do not differ substantially from treatments in non-obese women. For anovulation, first line treatment generally consists of ovulation induction with oral medications such as clomiphene citrate or anastrazole. Women who fail to achieve pregnancy with oral medications are often treated with injectable ovulation induction agents such as recombinant or urinary gonadotropins. In vitro fertilization is often performed if these treatments fail or if there are other factors contributing to infertility.
How does Obesity affect male fertility?
Recent studies have found a link between male fertility problems and obesity. A study found that men with a higher body mass index (BMI) had a significantly higher risk of being infertile compared with men considered to be normal weight. A separate study found that a link between obesity and sperm health. Deteriorated sperm quality increased significantly as BMI passed 25 and was severe in participants whose BMI was over 30. Poor sperm quality not only leads to infertility but also an increase incidence of abortion. Also IUI and IVF done with sperms of obese men have high failure rate as compared to sperms of normal weight men. In addition, obesity can have a number of other effects on male fertility:


How does anybody manage Obesity or Overweight?
Its easy to calculate IBW. In males, height in cms minus 100 and in females height in cms minus 105, should be your ideal body weight. Body weight 20 % more than Ideal body weight is Obese and greater than two times ideal body weight is morbidly Obese.
Waist/ Hip ratio also can be measured; it should be within 0.7 range to have optimum levels of Estrogen. Diet plays an important role in the genesis of Obesity. Personal choices, advertising, social customs and cultural influences, as well as food availability and pricing all play a role in determining what and how much we eat.
Weight loss occurs when energy expenditure exceeds energy intake. An energy deficit of 500–1,000 kcal/day will result in a loss of 1–2 pounds/week and an average total weight loss of about 8% after 6 months.
DIET PLAN – Special tips not to forget.
Remember: Half a loaf of bread is better than no bread..Something is better than nothing.
That is, eat something more frequently than absolutely not eating anything…..which is a wrong myth. Rather eat less but more frequently. Don’t starve yourself for a long period as that will turn into fats.