NAD supplements are designed to increase the levels of Nicotinamide Adenine Dinucleotide (NAD) in the body. NAD is a coenzyme that plays a critical role in energy production, DNA repair, and managing oxidative stress. As NAD levels naturally decline with age, these supplements aim to support cellular health, boost energy and promote longevity.

NAD is closely related to vitamin B3, as it is a form of this essential nutrient. Specifically, NAD is synthesised from B3 vitamins like niacin and nicotinamide. While they share similar origins, NAD's primary function is to facilitate energy transfer within cells, while vitamin B3 has other roles in overall metabolism.

There is no evidence suggesting that NAD supplements cause weight gain. In fact, NAD is associated with supporting a healthy metabolism, with low NAD levels having been linked to conditions like obesity and diabetes. Supplementing NAD might even help with weight management by boosting energy and metabolic health.

NAD supplements may not directly make you look younger but can help slow down the ageing process at a cellular level. By repairing damaged DNA, supporting energy production and managing oxidative stress, NAD helps improve vitality, which can contribute to a more youthful appearance and feeling.