How to Increase Fertility: Evidence-Based Tips for Indian Couples

• The strongest evidence backs weight optimisation, quitting tobacco, limiting alcohol, and starting folic acid, not exotic superfoods or supplement stacks.
• Timing matters most: have sex every 1 to 2 days during your fertile window (the 5 to 6 days ending on ovulation day).
• Fertility is a couple issue. Male factors contribute to roughly half of cases, so both partners should optimise lifestyle and get tested.
• Even 5 to 10 percent weight loss can restore ovulation in many women with PCOS.
• There is a clock: see a doctor after 12 months of trying if under 35, after 6 months if 35 to 39, and sooner if 40+ or you have known risk factors.
• "Just relax and it will happen" is not a treatment for a medical cause of infertility, and it is not your fault.

Not all fertility advice is equal. The evidence ranges from strong (large trials and cohorts) to weak (small studies, marketing, and wishful thinking), and most popular tips sit at the weak end.

The interventions with the strongest evidence are unglamorous but powerful:

• Weight optimisation improves ovulation and conception, especially in PCOS.
• Stopping tobacco improves egg reserve, sperm quality, and IVF success in both partners.
• Moderating alcohol, with strong evidence for sperm health.
• Folic acid before conception, the single highest-value preconception supplement.

• Track your cycle: ovulation is usually 12 to 16 days before your next period, so regular cycles are predictable.
• Use ovulation predictor kits (OPKs, around Rs 100 to Rs 300 each) that detect the LH surge 24 to 36 hours before ovulation.
• Chart basal body temperature (BBT) to confirm ovulation has happened.
• Watch cervical mucus, which turns clear and stretchy (like egg white) near ovulation.
• Ask for ultrasound follicle tracking at a clinic if your cycles are very irregular.

Irregular or absent cycles make timing harder because ovulation is unpredictable, and they are often the first sign of a treatable cause such as PCOS or thyroid disease. If your periods are unpredictable, OPKs alone can be misleading, so combine them with mucus tracking and consider seeing a doctor sooner. Our guide on getting pregnant with irregular periods walks through the practical steps, and treating the underlying cause, such as insulin resistance in PCOS, often restores ovulation on its own.

Body weight affects fertility in both directions, and the lowest rates of trouble cluster around a healthy BMI (19 to 23 by WHO Asia-Pacific criteria for South Asians).

Being underweight (BMI under 18.5) can switch off ovulation entirely through a drop in reproductive hormones, often from restrictive eating or excessive exercise. Restoring weight and easing up on intense training usually brings ovulation back over weeks to months.

Being overweight or obese reduces fertility through insulin resistance, hormone imbalance, and inflammation. It is linked to irregular ovulation, longer time to conceive, lower IVF success, and higher miscarriage risk. The good news: losing just 5 to 10 percent of body weight markedly improves ovulation and pregnancy odds in women with ovulatory problems.

Men's weight counts too. Obesity in men is linked to lower testosterone, reduced sperm count and motility, and more DNA damage, all of which improve with weight loss. Couples often do best tackling this together with shared meals and exercise. Aim for steady change over 6 to 12 months rather than crash dieting, which is hard to sustain and can disrupt hormones.

Tobacco is one of the most consistently proven harms to fertility in both partners.

• In women, smoking lowers ovarian reserve, can bring menopause forward by 1 to 4 years, reduces IVF success, and raises miscarriage and ectopic risk.
• In men, it cuts sperm concentration by roughly 10 to 20 percent and increases DNA damage.

• Fill half your plate with vegetables at most meals.
• Choose whole grains, such as millets, hand-pounded rice, and whole-wheat roti, over polished rice and maida.
• Make dal, rajma, and chana your daily protein base; add fish 2 to 3 times a week.
• Eat nuts, seeds, fruit, and curd or paneer in moderation; prefer healthy fats like mustard and groundnut oil.
• Cut back on refined carbs, fried foods, and added sugar.

Chronic short sleep (under 6 hours) disturbs the hormones that drive ovulation, so aim for 7 to 9 hours with a consistent schedule, a cool dark room, and screens off before bed. Treating snoring or sleep apnoea matters too, as it lowers testosterone in men.

Stress is more complicated. It can reduce sex frequency and disrupt eating and sleep, but the evidence that stress reduction directly boosts conception is mixed. Yoga, pranayama, meditation, and counselling reliably improve wellbeing during the emotional ups and downs of trying to conceive, which is reason enough to use them.

What the evidence does not support is "just relax and you'll get pregnant." If there is a medical cause, such as blocked tubes, PCOS, or a sperm problem, relaxation will not fix it, and the advice can feel dismissive and hurtful. Manage stress as one part of your plan, never as a substitute for evaluation.

Some everyday and workplace exposures can nudge fertility downward, and small swaps help. Endocrine-disrupting chemicals (in some plastics, pesticides, and personal-care products) are best reduced by storing and reheating food in glass or steel rather than plastic, washing produce well, and choosing fresh over heavily packaged foods.

Heat is specifically a male issue, because sperm production is temperature-sensitive. While trying to conceive, men should avoid hot tubs and saunas, keep laptops off the lap, and take breaks from long stretches of sitting in hot conditions. A high fever can also dent sperm quality for a few months, which is worth knowing before a semen analysis. Worried about other exposures? Many common male-fertility fears are overblown, as we cover in male fertility myths vs reality.

• Thyroid disease: TSH is checked in every fertility workup; for Hypothyroidism in Indian Women: Diagnosis, Treatment & Pregnancy, the target is usually under 2.5 mIU/L preconception.
• Diabetes: aim for HbA1c under 6.5 percent before conceiving.
• High blood pressure: switch off ACE inhibitors and ARBs, which are unsafe in pregnancy.
• Endometriosis, which can affect fertility and may need treatment first, as covered in endometriosis and infertility.
• Untreated infections, including STIs and pelvic inflammatory disease.
• Medications that are unsafe in pregnancy, such as isotretinoin for acne, valproate, methotrexate, and warfarin, all of which need a review.

• Under 35: see a specialist after 12 months of regular, unprotected sex without conceiving.
• Age 35 to 39: after 6 months.
• Age 40 or older: after about 3 months, or straight away.
• Sooner, regardless of duration, if you have PCOS, endometriosis, very irregular or absent periods, recurrent miscarriage, prior pelvic infection or surgery, or a known male-factor issue.

Getting evaluated does not mean abandoning your healthy habits; it means adding diagnostic clarity. A basic workup includes history and examination, hormone tests (FSH, LH, oestradiol, AMH, TSH, prolactin), a pelvic ultrasound, a tubal test (HSG), and a semen analysis for the male partner. AMH gives a sense of ovarian reserve.

In India this typically costs Rs 10,000 to Rs 25,000, with some employer plans and the Ayushman Bharat PMJAY scheme covering certain tests. The results guide what comes next, whether that is timed intercourse with guidance, ovulation induction, or assisted options like IUI or IVF. If you have had two or more losses, raise recurrent-miscarriage testing specifically.

• ACOG: Having a Baby After Age 35 and Evaluating Infertility
• NICE Guideline NG156: Fertility problems, assessment and treatment
• ASRM: Optimizing Natural Fertility (Committee Opinion)
• WHO: Infertility
• ICMR / National Family Health Survey (NFHS-5) India