The Claim
Folic acid and zinc supplementation has no effect on embryonic development parameters, including fertilization rate, embryo morphology, and number of high-quality embryos, in couples undergoing in vitro fertilization compared to placebo.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Taking folic acid and zinc supplements does not change the fertilization rate, embryo appearance, or number of high-quality embryos in couples undergoing in vitro fertilization compared to taking a placebo.
See the scientific wording
Folic acid and zinc supplementation does not improve embryonic development parameters such as fertilization rate, embryo morphology, or number of high-quality embryos in couples undergoing in vitro fertilization compared to placebo.
Taking folic acid and zinc changes how sperm DNA is packaged and repaired, leading to more breaks and errors in the DNA. When these damaged sperm fertilize an egg, the embryo starts with faulty genetic instructions, so it doesn't develop properly no matter how much folic acid or zinc the parents take.
What the research says
1 studyTaking folic acid and zinc pills didn't help couples have better embryos or more babies during IVF — and it actually made sperm DNA more damaged. So, the supplements didn't help, and might have hurt.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.