diff --git a/foodservice.go b/foodservice.go
index 5631ba7..98caeb3 100644
--- a/foodservice.go
+++ b/foodservice.go
@@ -11,7 +11,7 @@ type (
 		db *DB
 	}
 	Food struct {
-		rowid      int
+		rowid      int64
 		date       string
 		food       string
 		descripton string
@@ -92,6 +92,35 @@ func (s *FoodService) Create(food Food) (Food, error) {
 	return s.GetByRowid(rowid)
 }
 
+func (s *FoodService) Update(food Food) (Food, error) {
+	if s.db == nil || !s.db.Ready {
+		return food, fmt.Errorf("cannot update food, db is nil or is not ready")
+	}
+	if food.rowid <= 0 {
+		return food, fmt.Errorf("cannot update food, rowid is less than or equal to 0")
+	}
+	if food.food == "" {
+		return food, fmt.Errorf("cannot update food, food is empty")
+	}
+	if food.amount <= 0 {
+		return food, fmt.Errorf("cannot update food, amount is less than or equal to 0")
+	}
+
+	if food.per100 > 0 {
+		_, err := s.db.writeConn.Exec("UPDATE food SET food = ?, description = ?, amount = ?, per100 = ? WHERE rowid = ?", food.food, food.descripton, food.amount, food.per100, food.rowid)
+		if err != nil {
+			return food, fmt.Errorf("error updating food: %v", err)
+		}
+	} else {
+		_, err := s.db.writeConn.Exec("UPDATE food SET food = ?, description = ?, amount = ? WHERE rowid = ?", food.food, food.descripton, food.amount, food.rowid)
+		if err != nil {
+			return food, fmt.Errorf("error updating food: %v", err)
+		}
+	}
+
+	return s.GetByRowid(food.rowid)
+}
+
 func (s *FoodService) GetByRowid(rowid int64) (Food, error) {
 	var res Food
 	if s.db == nil || !s.db.Ready {
diff --git a/main.go b/main.go
index 1700918..8d15631 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"log"
+	"math/rand"
 	"os"
 	"sync"
 
@@ -70,12 +71,24 @@ func main() {
 	// }
 	// log.Println(food)
 
-	daily, err := foodService.GetDaily()
+	// daily, err := foodService.GetDaily()
+	// if err != nil {
+	// 	Error.Printf("%++v", err)
+	// 	os.Exit(1)
+	// }
+	// log.Println(daily)
+
+	test := Food{
+		food: "test",
+		amount: rand.Float32(),
+		rowid: 766,
+	}
+	food, err := foodService.Update(test)
 	if err != nil {
 		Error.Printf("%++v", err)
 		os.Exit(1)
 	}
-	log.Println(daily)
+	log.Println(food)
 
 	log.Println("done")
 	wg.Wait()