Vitamin B9 (folate or folic acid) is an essential, water-soluble vitamin that plays an important role in cell division, the production of red and white blood cells, the functioning of the immune system, and DNA formation. Additionally, vitamin B9 contributes to normal homocysteine metabolism and helps reduce fatigue and tiredness.

Vitamin B9 is primarily found in foods such as green leafy vegetables, legumes, whole grains, nuts, seeds, and certain fruits. The need for folate can be increased during periods when the body needs to produce many new cells, such as during pregnancy, growth, wound healing, and the continuous renewal of body tissues like skin, intestinal, and blood cells. In these situations, sufficient folate is important because it is involved in DNA synthesis, which is necessary for the normal development and function of new cells.

Iron bisglycinate is a highly absorbable form of iron where iron is bound to the amino acid glycine. This form contributes to the normal formation of hemoglobin and red blood cells, the transport of oxygen in the body, normal energy metabolism, and helps to reduce fatigue and tiredness. Additionally, iron supports a normal immune system function and normal cognitive function.

Iron bisglycinate is often used as a dietary supplement because this form is generally better tolerated by the gastrointestinal tract than some other forms of iron. It is a suitable form for people who need extra iron or have difficulty absorbing sufficient iron from their diet.

Thiamine is a water-soluble vitamin that plays an essential role in the body's energy metabolism. It helps convert carbohydrates from food into usable energy for cells and also supports the normal functioning of the nervous system, heart, and muscles.
Vitamin B1 is naturally found in whole-grain products, legumes, nuts, seeds, potatoes, and pork. Since the body can only store limited amounts of vitamin B1, a regular intake through diet is important.
Vitamin B1 is indispensable for both the physical and mental performance of the body.
A vitamin B1 deficiency can lead to fatigue, irritability, concentration problems, muscle weakness, and a reduced appetite. Severe deficiencies can affect the nervous system and the cardiovascular system.

Cholecalciferol is the natural form of vitamin D produced by the skin under the influence of sunlight. Additionally, vitamin D3 is found in animal foods such as fatty fish, eggs, and liver. The vitamin D used is derived from a plant source. Compared to other forms of vitamin D, cholecalciferol is efficiently absorbed and converted by the body into the biologically active form required for numerous bodily functions. Vitamin D3 contributes to normal absorption and utilization of calcium and phosphorus, supports the maintenance of strong bones and teeth, and aids in the normal functioning of the immune system and muscles.

Rice protein is a plant-based protein powder extracted from rice and serves as an important source of amino acids that contribute to the building and repair of muscle tissue, the maintenance of muscle mass, and a normal protein supply. Rice protein naturally contains no lactose and is often used as an alternative to animal protein sources or other protein supplements.

Rice protein is primarily derived from brown rice, where the proteins are concentrated into a powder through an extraction process.

L-glutamine is a non-essential amino acid that occurs naturally in the body and plays an important role in protein synthesis, nitrogen transport, maintaining healthy bowel function, supporting the immune system, and muscle tissue recovery after physical exertion.

L-glutamine is mainly found in protein-rich foods such as meat, fish, eggs, dairy products, nuts, seeds, and legumes. During periods of increased physical strain, intense training, illness, or physical stress, the need for L-glutamine may increase, making it important to pay extra attention to its intake.

Iodine is an essential trace element necessary for the production of thyroid hormones. These hormones play a crucial role in metabolism, energy production, and the normal functioning of the nervous system and brain. In Belgium, iodine is primarily added to baker's salt, making bread a significant source of iodine for the general population. When someone follows a keto diet, the intake of bread and other carbohydrate-rich products is severely restricted. This automatically reduces iodine intake, which can eventually lead to deficiencies. Since iodine is naturally present in only limited amounts in foods such as sea fish, shellfish, eggs, and dairy, it can be beneficial for people who eat little or no bread to pay extra attention to their iodine intake.

Magnesium is an essential mineral involved in hundreds of bodily processes, including muscle function, nerve conduction, and energy production.
Magnesium occurs naturally in foods such as whole grains, legumes, nuts, seeds, and certain vegetables.
Moreover, achieving ketosis causes the body to lose more fluid, which is accompanied by increased excretion of electrolytes such as magnesium, sodium, and potassium. Although magnesium is also present in nuts, seeds, and green vegetables, the total intake in a strict low-carb diet often tends to be lower.

Vitamin C is an essential, water-soluble vitamin that plays an important role in the immune system, the protection of cells from oxidative stress, collagen production, normal energy metabolism, and helps to reduce fatigue.
Vitamin C is mainly found in fruits and certain vegetables such as citrus fruits, berries, bell peppers, and broccoli. When someone follows a keto diet, fruit intake is often severely restricted due to its carbohydrate content, which eliminates an important source of vitamin C.