Fundamental Woman | All-stage nutritional foundation

Adequate maternal folate status is well established as important in early pregnancy. Most prenatals use folic acid, which must be converted to 5-MTHF before use. Up to 40% of women carry a variant of the MTHFR gene that impairs this conversion. A 2017 meta-analysis in the European Journal of Clinical Nutrition found that 5-MTHF raises blood folate levels more effectively than folic acid regardless of MTHFR status.

Choline is required for synthesis of phosphatidylcholine, a key structural component of cell membranes, and acetylcholine, involved in memory and muscle function. A 2018 randomised controlled trial published in the FASEB Journal found that higher maternal choline intake was associated with improved infant information processing speed. The adequate intake during pregnancy is 450mg/day; most prenatals contain none.

Vitamin D receptors are present in the uterus and placenta, and adequate vitamin D status is associated with normal reproductive function throughout pregnancy. The UK government recommends 10µg daily as a minimum; 50µg is consistent with recommendations from leading fertility clinicians for women actively trying to conceive and during pregnancy.

Ferrous bisglycinate is a chelated form in which iron is bound to glycine, improving absorption compared to ferrous sulphate while reducing GI side effects. A study in Acta Haematologica found equivalent or superior haemoglobin responses with markedly fewer GI complaints.

Iodine is critical for fetal neurological development, particularly in the first trimester before the fetal thyroid is functional. The WHO classifies iodine deficiency as the leading preventable cause of intellectual disability worldwide. UK dietary surveys consistently show inadequate iodine intake in women of reproductive age.

D3 increases calcium absorption; K2 (as MK-7) activates osteocalcin and matrix Gla-protein, directing calcium to bone and preventing arterial calcification. Supplementing D3 without K2 may allow calcium to deposit in soft tissue. MK-7 has a longer half-life than MK-4, maintaining active levels with a single daily dose.

A 2014 Cochrane review found vitamin B6 associated with reduced nausea severity in early pregnancy. It is recommended as a first-line approach for pregnancy nausea in several clinical guidelines, and plays a role in oestrogen metabolism and neurotransmitter synthesis.

Niacin is a precursor to NAD+, a coenzyme central to cellular energy production and DNA repair. Research into the role of NAD+ during early development has generated significant scientific interest in adequate niacin status during pregnancy, particularly given NAD+'s role in the energy-intensive processes of rapid cell division in the developing embryo.

Preformed vitamin A (retinol) is teratogenic at high doses and specifically contraindicated in pregnancy supplements. Beta carotene is converted to retinol on demand; the body regulates this conversion according to its needs, making excess intake safe. This is why Fundamental Woman uses beta carotene rather than retinol.

Pantothenic acid is a precursor to coenzyme A (CoA), which participates in over 100 metabolic reactions including the citric acid cycle and fatty acid synthesis. CoA is also required for the synthesis of steroid hormones including progesterone, which is key for early pregnancy.

Manganese is a cofactor for manganese superoxide dismutase (MnSOD), a mitochondrial antioxidant enzyme. It is also required for the synthesis of glycosaminoglycans, structural components of bone and cartilage, which is key for fetal skeletal development.

Biotin is a cofactor for five carboxylase enzymes involved in fatty acid synthesis, amino acid metabolism, and gluconeogenesis. It plays a role in histone modification and gene expression regulation, increasingly recognised as relevant to embryonic development. Biotin deficiency has been associated with fetal abnormalities in animal studies.

Iodine is actively secreted into breast milk and recommended intake increases during breastfeeding. UK dietary surveys show widespread inadequacy in women of reproductive age, particularly those avoiding dairy. Iodine is essential for thyroid hormone production, which regulates your baby’s metabolism and neurological development in the months after birth.

Breast milk B12 content reflects maternal status. Adequate B12 supports normal neurological development in breastfed infants, and is particularly important for mothers following plant-based diets, where dietary sources are limited. Methylcobalamin is the active form that directly participates in cellular processes without requiring conversion.

A 2018 randomised controlled trial (Caudill et al., FASEB Journal) found that higher maternal choline intake was associated with improved infant information processing speed and attention at 4, 7, 10, and 13 months. Separate clinical trial data show that higher maternal plasma choline correlates with improved infant cognition at one year. The adequate intake recommendation increases to 550mg/day during lactation, yet most women fall well short of this.

Maternal vitamin D stores are depleted during pregnancy and continuing demand during lactation extends this depletion. The UK Chief Medical Officers recommend continued vitamin D supplementation for breastfeeding women. Vitamin D is essential for calcium absorption, immune function, and musculoskeletal health in both mother and infant.

Iron depletion following birth, from blood loss during delivery and the demands of lactation, is common. Ferrous bisglycinate offers equivalent or superior haemoglobin response to ferrous sulphate with markedly fewer GI side effects, making consistent daily use more achievable.

Breast milk folate content is maintained at the expense of maternal stores. The active 5-MTHF form ensures bioavailability regardless of maternal MTHFR status, and is directly usable by both mother and infant.

Breast milk thiamin content reflects maternal intake, and maternal depletion during lactation has been documented. Adequate thiamin supports normal neurological development and energy metabolism in breastfed infants.