Collagen, seaweed and the nutrients that reverse skin ageing – with Dr Craig Rose

Mar 18, 2026

14:54

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Episode notes

We spend a fortune on what goes on our skin, but Liz has long believed that what goes in matters just as much, if not more.

In this episode, she talks to Dr Craig Rose, marine biologist and founder of Doctor Seaweed, about the nutrients that midlife women are chronically short on, and what that deficiency is quietly doing to our skin, metabolism, and brains.

This episode is sponsored by Doctor Seaweed who are offering listeners of the show 20% off purchases at doctorseaweed.com when you use the code LIZLOVES at checkout.

In this episode:

-What iodine is and why many women aren't getting enough

-Why iodine is so important for thyroid health - and what happens when levels are low

-The energy skin, hair, nails, and metabolism benefits of optimal iodine levels

-Why seaweed is one of the most natural and sustainable sources of iodine

-Why collagen declines with age and how supplementation can support skin, hair, nails, and more

-What to look for in a high quality collagen supplement

Links mentioned:

· Doctor Seaweed Collagen+

· Take the 20-second iodine quiz

More from Craig

· Follow Doctor Seaweed on Instagram