This is part two of my conversation with head nutritionist at ZOE, researcher, and author, Dr Federica Amati. In part one we walked through the golden window of preconception, sperm and egg health, GLP-1 medications and fertility, and nutrition through pregnancy. Here we pick up where we left off and follow the first 1,000 days all the way to the end: the final weeks before birth, how a baby is delivered, breastfeeding and formula, weaning and first foods, and the environmental exposures that sit behind all of it.
Much of this territory has become a source of guilt rather than clarity, which is a shame, because the evidence is more reassuring than the headlines suggest. Federica’s framing is the one I keep coming back to: this window is critical, but it is not fragile. Our biology is remarkably good at adapting to an imperfect world. And most of what shapes these early years is structural, not the result of any one parent’s choices. As she puts it, if you want a public health intervention that improves the health of future generations, you support parents to spend time with their children.
What We Cover:
- Why the first 1,000 days set what Federica calls the ramp of ageing, and why a critical window is not the same as a fragile one
- Choline, iodine, and omega-3: how much you actually need, and why the advice to eat four eggs a day for choline does not hold up
- The folic acid versus methylated folate debate, including the grain of truth behind the colorectal cancer concern
- What the evidence really says about C-sections and a baby’s microbiome, and why those differences appear to converge by age two
- Breast milk as a living system rather than simply food, and an honest comparison with formula, including where formula has the advantage
- Why the UK has one of the lowest breastfeeding rates in the world, and why Federica directs her anger at the system rather than at parents
- Weaning without the marketing: the smoosh test, why acceptance can take eight to 12 exposures, and what baby pouches are actually for
- Microplastics and endocrine disruptors: which exposures are worth taking seriously, and the small number of swaps that do the most work
What I appreciate most about the way Federica talks about this period is that she hands agency back to parents without pretending the system is set up to help them. Her closing message is worth holding onto: human biology is resilient, none of this was ever about perfection, and if you are thinking carefully about any of it, you are almost certainly already doing a good job.
To connect with Dr Federica Amati, follow her on Instagram at @dr.fede.amati or explore her work at ZOE. You can read more about the campaign she discusses in this episode at Plastic Free Babies, and her Sunday Times bestseller, Every Body Should Know This, is available wherever books are sold.
- Why The First 1000 Days Shape Lifelong Health (00:00)
- How Much Choline You Need In Pregnancy (05:34)
- Folic Acid Vs Methylfolate: What Science Says (10:59)
- Why Iodine Is Critical For Baby’s Brain (15:54)
- How Much DHA Omega 3 In Pregnancy (17:53)
- What To Eat In Late Pregnancy (21:01)
- How To Support Your Vaginal Microbiome (24:01)
- C Section Vs Vaginal Birth: Microbiome Effects (26:33)
- Breastfeeding Benefits And Risks Explained (29:30)
- Breast Milk Vs Formula: What Research Shows (33:25)
- Why Breastfeeding Feels Scary And Formula Feels Easy (40:24)
- How To Handle Postpartum Bounce Back Pressure (45:31)
- How Long Should You Breastfeed (49:05)
- How To Start Weaning At Home (51:20)
- Iron, Food Variety, And Ditching Pouches (53:43)
- Why Messy Eating Helps Your Baby Learn (59:13)
- Microplastics And How To Reduce Plastic Exposure (01:03:24)
- Water Filters And PFAS: What Works (01:13:00)
Subscribe and stay connected:
Subscribe to The Proof on YouTube, Apple Podcasts or Spotify to ensure you never miss an episode. And don’t forget to follow me on Instagram and X for more insights and updates.
This episode is brought to you by:
38TERA
Consider 38TERA’s DMN prebiotic supplement a daily multivitamin for your gut. Formulated by yours truly and gastroenterologist Dr Will Bulsiewicz. Use code THEPROOF for a discount at checkout.
38Tera ships to the United States, Australia, and New Zealand.
Upwork
Post your job for free at Upwork.com and connect with top talent ready to help your business grow. Find the right talent to support your business and bring your projects to life.
ProLon
ProLon’s 5-Day Fasting Mimicking Diet is a science-backed, plant-based program designed to support metabolic health while keeping your body in a fasting-like state. Get 15% off sitewide plus a $40 bonus gift at ProLonLife.com/THEPROOF.
ProLon ships within the United States.
Skylight
Families are better when they’re working together. Right now, Skylight is offering our listeners $30 off their 15 inch Calendars by going to MySkylight.com/THEPROOF.
Skylight ships within the U.S. and to Canada, Australia, and the United Kingdom.
Momentous
My go-to supplement brand for protein and creatine is Momentous. Use code THEPROOF for up to 35% off your first order at livemomentous.com.
Momentous ships to many countries worldwide depending on local import regulations.
Function Health
Take charge of your health with advanced blood testing and personalised insights. Function Health offers a practical way to track key health markers such as cholesterol, blood sugar, and more. Learn more and join at functionhealth.com/simonhill for a $25 credit toward your membership. Only available to those living in the United States.
Function Health ships to 48 U.S. states, excluding Rhode Island, Hawai‘i, and Puerto Rico.
WHOOP
Whoop, the most advanced fitness and health wearable available. Your personalised fitness and health coach to recover faster, sleep better, and train smarter. Claim your first month free on join.whoop.com/simon.
Whoop ships to 56+ international markets, including the US, Canada, most of Europe, Australia, New Zealand, UAE, Singapore, and parts of Asia.
More about Dr Federica Amati
Dr Federica Amati is the Head Nutritionist at ZOE, the nutrition science company leading the gut health revolution, and holds a PhD in Clinical Medicine Research from Imperial College London. She has a masters in Public Health and is an Association for Nutrition (AfN) Registered Nutritionist.
Federica is the author of Recipes for a Better Menopause and Sunday Times Bestseller Every Body Should Know This. Her approach focuses on improving overall dietary quality throughout the life course, using food as the best tool to transform health.
